Have cryptocurrency and/or cryptoassets become a proper asset class in the financial world? It's hard to answer. But, sitting at the end of the first 1/5th fo the 21st Century, it seems like crypto is on its way to becoming a real asset class if it's not already there.
There isn't some special or sacred list in finance houses in London's financial district or on Wall St. in NYC that has a list of all asset classes - it doesn't work that way. What's considered a proper asset class and what's regarded as an alternative asset class (and further distinctions at various levels of granularity) is more based on collective consensus.
Common consensus may make sense, but whose consensus are we talking about. Generally speaking, whether a financial instrument is considered a proper primary asset class (like stocks, bonds, and cash) is determined by the conglomeration of the following people's/org's opinions:
It's the interplay between individuals in each of the above categories that determine whether an asset class is going to be considered a core/primary asset class in the general conception.
Another critical thing to think about is the size of the crypto market. The market cap of all cryptos can be viewed against the market cap of individuals asset classes and the entire finance industry as a whole. Questions like the following might be asked to understand better how big the overall crypto market is relative to all other finance-related markets:
Although there's no hard and fast way to determine whether anything is a core asset class definitely, crypto seems on its way to getting there. It seems likely that one day, gold will remain an alternative asset, but crypto will be a core part of most people's long term investing and retirement portfolios. One day, financial advisers may even find it imprudent to not include crypto as part of a proper diversified investing strategy.
From the birth of Bitcoin -- which effectively was the birth of the modern cryptocurrency and crypto asset scene -- it has been known as being in some ways anarchic or promoting some sort of counterculture. This misconception (a misconception that is slowly and steadily going away as Bitcoin, Ethereum, and other cryptoassets enter into the mainstream financial world) is detrimental to the cryptocurrency and cryptoasset industry because it causes people to not pay attention to the real strengths of cryptoassets and the blockchain technology that generally underlies it.
One major step on the cryptoasset scene was the creation of Ethereum - Ethereum is a second-generation cryptoasset that remedied many of Bitcoin's problems. Ethereum is one of the most prominent of these newer cryptoassets (aka altcoins) that was created to solve a whole lot of the problems that we know Bitcoin to have - chiefly by enabling users to create what are called smart contracts. Ethereum itself, however, has not been immune to problems - this is one of the main reasons for the creation of Cardano by former Ethereum developers, a third-generation cryptoasset which seeks to further improve on Ethereum.
Cardano is based on Peer-Reviewed Research
One of the key things that make Cardano standout among all other cryptocurrencies is that the ideas that were used to build it and with which its developer team continue to improve the network are a product of meticulous peer-reviewed research. This means that unlike almost all other cryptocurrencies and cryptoassets on the market today -- whose underlying ideas are just published by its team of developers without any scrutiny or tests before being rolled out -- most of the principles upon which Cardano is built are scientifically-researched. With former Ethereum CEO Charles Hoskinson being a prominent member of its development team, Cardano perhaps boasts of one of the most credible foundations of any cryptocurrency and cryptoasset outfit in the industry
Problems Solved with Cardano
Cardano attempts to solve various problems that have plauged other cryptocurrencies and cryptoassets. Cardano's benefits include the following:
Cardano's Mining Protocol
Cardano uses a proof of stake (PoS) mining protocol that is known as the Ouroboros, which is a cutting-edge and scientifically-proven mining protocol that has been proven beyond doubt to be scalable and completely secure.
By implementing proof (something that Ethereum will likely implement in the future), the Cardano network allows for the printing of new blocks without wasting a lot of electricity - the mining problem is something that Bitcoin is currently dealing with.
When most people think of digital currency or cryptocurrency, they think of Bitcoin. Bitcoin is only one of many cryptocurrencies and cryptoassets available today, however. Among all of the new members of the cryptoasset scene (also called altcoins), none has made a bigger impact (both in terms of mindshare and in terms of market cap) than Ethereum.
Many people Ethereum akin to silver if Bitcoin is considered gold. However, many others in the crypto industry believe that Ethereum has the potential to overtake Bitcoin due to its inherent characteristics and capabilities that Bitcoin does not possess.
What is Ethereum?
Ethereum is a distinct blockchain platform different from Bitcoin - it was created by Vitalik Buterin and went live in the Summer of 2015 (read the constantly updated Ethereum white paper here).
Ethereum was designed as the ultimate blockchain upon which all kinds of blockchain-based applications including newer cryptocurrencies can be built. The Ethereum blockchain was designed with the target of fixing many of Bitcoin's problems/weaknesses as well as to enhance the efficiency of any application that is built on the Ethereum blockchain.
Ethereum has been one of the major reasons for the explosion in the number of initial coin offerings (ICOs) that are constantly happening all over the world due to the relative ease and reduced costs it now takes for a startup to release its own blockchain application or cryptocurrency. Effectively, many of the world's ICOs are build upon Ethereum.
Similar to Bitcoin, Ethereum uses a Proof of work (PoW) approach whereby computers solve complex mathematical problems in an attempt to receive a reward; this is also how transactions are validated around the world in a decentralized way. Ethereum used a slightly different hashing algorithm than Bitcoin and there are plans and discussions to transition Ethereum away from a Proof of work (PoW) approach to a Proof of Stake (PoS) approach - a Proof of Stake (PoS) approach is considered more sustainable and will likely require less intensive computing power.
Being a distinct blockchain platform, the creators of Ethereum recognized the importance of the platform having its own native currency with which transactions can be conducted on the Ethereum platform. This why the Ether token was created, which is the means of exchange on the Ethereum platform - users can use Ether (ETH) pay for the space to build their own applications as well as use ETH to make peer-to-peer payments in a decentralized way similar to Bitcoin.
But, Ethereum is more than just a means of exchange
Ethereum is touted as the biggest thing to happen in the crypto and blockchain scene since the creation of Bitcoin in 2009. This is because it brought about a number of new innovative features that have the potential to prove very useful. The main differentiating feature of Ethereum is the ability to engage in what are called "smart contracts" on the Ethereum platform - whereby Bitcoin is simply a means of exchange, Ethereum has the potential to be a lot more through the use of smart contracts.
A smart contract is a simple idea which made cryptocurrency payments safer for users all over the industry. It is a few lines of code (instructions) which dictate that a certain number of ETH should be transferred from one user of the Ethereum platform to another user upon the fulfillment of certain stated conditions and not otherwise. Smart contracts were designed to enable honest business between total strangers, in which the seller knows that as long as they deliver their part of the bargain, they will receive a full payment (or whatever else was bargained for). Additionally, buyers know that their payments remain safe until they receive the good or service they are paying for.
How to store your Ether
Ether and Bitcoin are completely separate things in the crypto space - they are built on different source codes and utilize different hashing algorithms. ETH and BTC cannot be stored on the same crypto wallet - a separate Ethereum wallet is required for the storage of ETH. In order to effectively and securely store your Ether, you'll need to find a reputable wallet that caters to ETH storage.
The world is abuzz with talk of Bitcoin and other cryptocurrencies and cryptoassets. Not long ago these revolutionary means of transacting were considered a fringe idea that was going to die a natural death or evolve into some niche part of a more broad product schema. Fast-forward to the present day, however, and you'll see that the cryptocurrency and cryptoasset industry has snowballed and has a market cap (the total value in USD of all material cryptocurrencies and crypto assets) that rivals the largest firms in the US (with little sign of things slowing down).
So, what is this new thing called cryptocurrency and what is all the commotion in the financial news related to it about?
What is a cryptocurrency or a cryptoasset?
A cryptocurrency or cryptoasset (these terms can generally be used interchangeably) in general terms can be defined as any member of the new blockchain-based platforms that are made specifically to enable people to make peer-to-peer payments in fast, highly secure, and private ways that requires no recourse to banks, payment providers, or third-party clearing firms. A cryptocurrency is generally a stateless borderless digital currency, the first example of which came into existence in 2009 with the creation of Bitcoin by Satoshi Nakamoto. The cryptoasset industry has since grown exponentially and presently has over 1000 distinct currencies - many of these are scams and useless gimmicks while others are potentially very useful and add capabilities beyond what Bitcoin originally possessed.
Cryptocurrency vs. Fiat Money
The following are a few key aspects of cryptocurrencies and cryptoassets that distinguish them from traditional fiat money (eg. USD, Euro, Yen, Yuan, etc.):
How do I store cryptocurrency?
Being a totally decentralized and boundary-less currency, cryptocurrencies don’t need the present banking infrastructure to be kept safe by their owner. They are stored in encrypted software known as “wallets”, which carry unique codified address with which the user sends and receives them. Additionally, cryptocurrencies and cryptoassets can be stored with third parties where the third party stores the key cryptographic information (eg. your private keys) that will allow access to your cryptocurrency or crypto assets.
Such third party services include Kraken, Poloniex, Coinbase, and Xapo. There is an inherent risk present when using third-party firms for cryptocurrency and crypto asset storage - you are trusting them with the proper maintenance of very key and unique information.
How can I acquire cryptocurrency?
There are two main ways in which to acquire cryptocurrencies or cryptoassets. The first is by following the technical process of creating them (which is generally known as mining), where computers are coupled with specialized hardware to solve massive mathematical puzzles with the chance earning a reward which is the cryptocurrency. The second method is by simply going the route of using your fiat money to buy the cryptocurrency of your choice from the nearest reputable exchange you can find (eg. those third-party firms referenced above).
Prices of cryptocurrencies and cryptoassets from one cryptoasset to another as each digital currency has its own distinct features and peculiar purpose it serves - these unique features and/or purposes influence demand and the addressable market, which in turn influences price. Currently, cryptocurrencies and cryptoassets have proven to be very volatile when compared to traditional financial instruments such as stocks, bonds, real estate, and commodities - this volatility makes it riskier when purchasing cryptocurrencies and cryptoassets because it is hard to know whether the price of a cryptoasset will move against you soon after purchase.
A cryptocurrency is a secured decentralized digital medium of exchange developed to facilitate secured peer to peer transactions. While many people have heard of cryptocurrencies and some are involved in the purchase and sale of cryptocurrencies and cryptoassets, only a few are aware of the history behind this potentially world-changing application of cryptographic technology.
As such, compiled below is the history of cryptocurrency. This history will be both useful for newcomers to the cryptocurrency and cryptoasset worlds as well as those that are more seasoned - understanding the history of a topic or technology almost always is useful in terms of adding context and grounding to one's understanding.
The late 1980s to Early 1990s - Foundations begin to Form
In the 1980s people began conceiving the idea of the creation of digital cash and/or virtual currency. These people then began to seek ways to bring this idea to fruition. However, none of their efforts and/or the results was reported.
In the year 1990, American cryptographer David Chaum invented DigiCash, the first form of electronic currency. This new "e-cash" gained tremendous publicity and sparked interests in various diverse intellectual quarters, including libertarians, anarcho-capitalists, and those interested in the applications of cryptography. Chaum's DigiCash was however later found to have some faults and subsequently, was no longer used.
1998 - A Precursor to Bitcoin
In 1998, Wei Dai, a computer engineer created and published an article on "b-money". Dai regarded b-money as an anonymously distributed electronic cash system which allows for senders to directly communicate with buyers over “an untraceable network”.
Also in 1998, computer scientist Nick Szabo, designed the mechanism for a decentralized electronic currency he termed "bit gold". To use bit gold, a person would have to solve cryptographic puzzles whose solutions would be sent to a registry and then assigned to a designated public key representing the solution provider. Each solution would then become a part of a subsequent challenge which would then help to create a growing chain of new property for the solution provider. This design was created to help validate new coins.
Although bit gold was never implemented, it is regarded as the precursor to Bitcoin - those who know anything about Bitcoin mining will see the somewhat shared intellectual DNA between Bitcoin and Szabo's bit gold.
2009 - The First Truly Decentralized Digital Currency, Bitcoin
The year 2009 can be said to be the year the concept of cryptocurrency became established. Although much work (both technical and non-technical in nature) had been done in the previous two decades pertaining to digital currency and the potential application of cryptographic methods to make them effective, 2009 can easily be considered the genesis of cryptocurrency proper.
In 2009, Bitcoin was established. This establishment and its subsequent use can be attributed to Satoshi Nakamoto, who is a pseudonymous individual (or more likely, a group) that developed Bitcoin. Nakamoto articulated the concept of Bitcoin in a white paper published in the same year. Per his white paper, Nakamoto called Bitcoin a peer-to-peer cash payment system - little did the initial readers of the white paper (and possibly Nakamoto himself/herself) know what Bitcoin would become over the course of the coming decade.
This system was able to actualize true decentralization which was a feature many before him/her could not achieve. He was able to achieve this such that there could be a consensus between parties without the need for a central authority (eg. a financial firm or a government). Additionally, Nakamoto's Bitcoin was able to seemingly solve the double spending problem, something that seemed unachievable without a proper centralized network or clearinghouse.
Bitcoin has since gone beyond being the first cryptocurrency to also be the most popular, most sought after, and most used cryptocurrency with over 16 million in circulation (out of a total of 21 million that will ever exist per Nakamoto's original design).
2009 to Present - Altcoins, Proliferation, and Investing
Since the creation of Bitcoin in 2009, over 850 cryptocurrencies (often referted to as altcoins) have been developed and are now in circulation. Some of these altcoins are Litecoin, Peercoin, Robocoin, Ethereum, Salt, Cardano, Iota, Viacoin, Siacoin, Bitcoin Cash, Ripple, and Dogecoin.
Many of the new cryptoassets or altcoins that are on the market today are not considered high-quality cryptoassets like Bitcoin but are instead considered frauds, scams, gimmicks, or schemes that allow the creators of the coins to make a quick profit (through the use of what are called initial coin offerings or ICOs).
Other cryptoassets or altcoins, however, seem useful and add capabilities beyond what Bitcoin is currently capable of. For example, Bitcoin is generally only used for payments while Ethereum has the capability for use in what are called "smart contracts" and Iota is created to assist with the creation of an internet of things (IOT) world.
The concept behind cryptocurrencies is now being researched by financial institutions and governments, its’ monetary value is on a steadily rising (in terms of fiat currency such as the USD or the Euro) and many are beginning to see cryptocurrency as an investment option.
Foggy Future - Where will cryptoassets go from here?
Given the past 30 years in cryptocurrencies, cryptography, and the concept of decentralized digital cash (and especially the last 10 years since the creation of Bitcoin), it's a fool's errand to try to predict in any meaningful way where things will go in the cryptoasset space. However, it is likely that many of the early trends seen today will continue on. Specifically, it is likely that cryptoassets will consume more mindshare globally, will break into Wall Street (eg. futures, ETFs, hedge funds, etc.), and that a broader infrastructure (both in support of and in use of crypto assets) will be built up over the coming years and decades.
Why you should have bought Bitcoin in 2015, and a way to approach any similar crypto purchases (Monesh Pabrai's Dhando way)
The below is a dated article from 2015 regarding Bitcoin. The analysis is an unsophisticated binary analysis that relies more on qualitative explanations than on quantitative approaches/methods. Crypto has come a long way since the article - it was written pre-crytpo proliferation, when Bitcoin was basically the only cryptocurrency really around.
I wrote about Bitcoin previously. You can see my original article Bitcoin here. I have learned more about Bitcoin, more about investing, and I have been able to look at Bitcoin through a different lens since writing that article.
The main part of my increased knowledge about Bitcoin has come from one of my favorite, if not my absolute favorite, podcasts called EconTalk. On an episode of EconTalk, host Russ Roberts interviewed Bitcoin evangelist and Xapo CEO Wences Casares. The interview was both interesting and informative. You can access the interview as well as a good amount of extra learning material here. I highly recommend that you listen to the interview and read some of the material on the website if you are interested in Bitcoin or are planning to make a purchase.
In the interview, Casares discusses many things but what I want to focus on here is Casares's postulation that purchasing Bitcoin is a very low-risk/high-reward endeavor. Casares believes that there is a non-trivial chance that Bitcoin will grow in popularaity and become a global currency. Even if 1% of global trnsactions are done in Bitcoin, Casares argues rightly that Bitcoin's value will grow immensely in value. This is easy to understand. If 1% of global transactions will be done in Bitcoin at some point in the future, the total value of all Bitcoin in existence wold equal (0.01)(x), x being equal to the total value of all of the transactions done in that future year. If we include black market transactions, the value of Bitcoin will be even higher. It is important to remember that an inherent property of Bitcoin that separates is from every other national currency in existence is that Bitcoin are generated at a predictable pace and after a certain year, no more Bitcoins will ever come into existence. Therefore, Bitcoin cannot be deflated like the US Dollar, the Euro, the Yen, or any other national currency can. We can see that as the value of global transactions rises, the total value of all Bitcion in existence should rise (assuming Bitcoins comprise a stable percentage of all global transactions). So, if Casares is correct in saying there's an non-trivial chance of Bitcoin taking off and becoming a means of exchange for a significant (even 1% is significant) portion of global transactions, the value of each individual Bitcoin will rise tremendously. Casares believes that in the next few decades a single Bitcoin could be worth $1 million USD. That definitely sounds crazy in 2015, but it isn't at all crazy if Bitcoin takes off.
Of course Bitcoin has a very high probability of not taking off. Casares acknowledges this, but this acknowledgement doesn't stop him from recommending that individuals should purchase a few Bitcoin. He argues that purchasing a few Bitcoin will cost less than $1000 as of the writing of this post (this will obviously change as Bitcoin fluctuates on a daily basis). A person who takes Casares's advice now has two possibilities for his or her future as depicted by the tree below.
The above options are different than investing in stocks, real estate, or commodities. Investing in those things requires a large up-front investment and historical growth rates for those investments are nothing spectacular. With Bitcoin, a very small investment is more than sufficient to position you to take advantage of a potential meteoric rise in the value of Bitcoin. If Bitcoin takes off, it will be much more valuable than it is today. It could potentially make you a millionaire off a $1000 investment in a decade or two. Thinking about it this way reminded me of great investor and author Monesh Pabrai and his book The Dhando Investor. In it Pabrai describes the concept of Dhando, a concept that echos Warren Buffet's investing style. The concept of Dhando mean taking calculated risks that have extremely limited downside potential while having extremely amazing upside potential. By using the concept of Dhando with skill an investor can take risks that are of a very particular variety, the kind where making a mistake doesn't mean disaster. To be Dhando is to be like Pabrai or Warren Buffet. To be Dhando is to take those risks that have very little downside but very big upside potential.
Casares's recommendation had Dhando qualities. It is a recommendation that is geared toward a Bitcoin investor entering into a position where his or her downside is limited but where the upside is great. Although the chances of winning here are slim, it is Dhando because it preserves your wealth and positions you into a place to profit should things go well.
This is now how I view investing or purchasing Bitcoin. I don't know much about Bitcoin mining and I almost have no use for Bitcoin for use in making transactions at this stage. I view Bitcoin as a Dhando endeavor where I can place my bet and think of it no more. In a decade or two I'll either be rich or I'll be indifferent about it. It takes a small amount of time and about $1000 for me (for you it might be a different amount - BUT it should always be an amount that allows you to remain Dhando - meaning an amount that you will be pretty much indifferent about losing should Bitcoin fail totally).
Coinbase is a user-friendly, reputable, and seemingly secure way for purchasing Bitcoin and other cryptos
For my first foray into purchasing Bitcoin I decided to go with Coinbase. Coinbase is a Bitcoin wallet that also provides Bitcoin trading services and APIs for developers related to Bitcoin.
I chose Coinbase for primarily one reason - because it seems to be the most reliable based on the firms that back it. The two firms that caught my eye were the venture capital firm Andreessen Horowitz and the seed accelerator Y Combinator. These two firms are well-known and well-respected in Silicon Valley, having had top Silicon Valley tech firms pass through their doors (Facebook, Box, Airbnb, etc). I’ve heard about these firms before I heard about Bitcoin and when I knew that they were involved with Coinbase, I automatically put Coinbase above the many other Bitcoin and cryptocurrency wallets that exist. There are competitors which I find very interesting of course (notably Xapo - I will very likely try it out later), but Coinbase seems to be the most secure. I obviously am using a heuristic in deciding what Bitcoin wallet is most secure – unable to see what is happening behind the scenes and unable to fully understand all of the complex technology behind cryptocurrency, I must use some proxy or some heuristic in order to make my decision, and here I use perceived reputation or perceived reliability based on affiliation with other strong organizations.
Coinbase is not the cheapest Bitcoin wallet. Coinbase charges 1% to purchase Bitcoin but it is free to receive Bitcoin as long as you don’t convert into USD. I am aware that 1% isn’t cheap compared to other ways to purchase the cryptocurrency, but when it comes to such a new technology, security and reliability is primary for me. For that 1%, however, you get a trusted firm through which you can purchase your Bitcoin. The more tech-savvy individuals among you might choose a more do-it-yourself option, but I don’t have either the time nor the inclination ( (nor risk-tolerance) to choose that route. Those who do might be more well-served by doing it themselves, where they can save money on the fee, but more importantly have a chance at learning some interesting things about Bitcoin that one cannot learn by simply using a very user-friendly Bitcoin wallet such as Coinbase.
I have been impressed with the front-end security of Coinbase. To sign up you are required to upload a photo ID. This is antithetical to many of the reasons why people have been drawn to cryptocurrency and Bitcoin (privacy in making purchases online), but I am not so much concerned with privacy as I am with security and reliability. I primarily purchase Bitcoin as a form of speculations, not as a means of transacting. Therefore, the photo ID requirement didn’t deter me at all. Additionally, logging in to Coinbase requires two-factor authentication and it requires a third factor (email verification) when logging in from a new device or a new computer. This is impressive. I have only use the iOS app and it has a passcode and is compatible with Touch ID. I didn’t like that the passcode can only be 4 digits. Most banks have eliminated 4-digit passcodes for their lack of security (10 x 10 x 10 x 10 – 10 thousand possible combinations make it relatively easy to hack into). Since the app is always logged into your account (meaning your entire Coinbase account lies behind that 4-digit pin) and given the prevalence of Touch ID, I think a more secure passcode option might be a better idea (6-digits +).
Overall, I think Coinbase is an elegant, secure, and easy-to-use way to purchase Bitcoin for the average user. It might not please those that are very tech-savy and willing to take on a more hands-on approach with purchasing and securely storing Bitcoin.
Bitcoin and Crypto: Similar to precious metals and commodities, they may add diversification to your portfolio but aren't good standalone investing strategies
If you're here, then you probably already know something about the digital currency called Bitcoin, which has grown in popularity over the last few years. Therefore, we won't discuss what they are, how cryptocurrencies like Bitcoin are obtained, or how they are mined. We will be attempting to answer a simple question: Should you invest in Bitcoin?
More precisely, the problem should be: Should you PURCHASE Bitcoin? This is because Bitcoins can be either purchased or obtained through mining. I won't be discussing Bitcoin mining here because I have only done minimal research on the topic, and your success depends greatly on how you approach the endeavor.
So, should you buy some Bitcoin? Should you spend your US Dollars (or whatever form of currency you use) to purchase this new and unregulated digital currency?
Currency is generally not a good investment for most investors, and Bitcoin and other cryptos are sort of like currencies
For the vast majority of investors, investing in currency or currency trading is a fool's game. There is a lot of risk and uncertainty, and there are always people who are playing the same game but are more informed than you. What makes you think that you will be better able to predict the movements of the Yen or the Euro than another currency trader with more education, a faster computer, and better software? That's what you have to do to succeed in currency trading because the only way you make money in currency trading is when you make the right "bet." Bitcoin is just another type of currency. It's not government-issued or government-regulated, but it is a currency nonetheless. The same principle of currency investing that applies to the plethora of government-issued and government-backed currencies apply to this new digital currency called Bitcoin.
I did say you were making a "bet" when currency trading. You might say, "don't you make a bet on any investment, be it a stock, a bond, real estate, etc.?" The answer to that question is a resounding yes. However, when you purchase some investments, it's a different type of bet you're making.
As we discussed in our article on investing in precious metals like silver and gold, if your gold coin goes up in value it only goes up because of the forces of supply and demand. If my share of Tesla Motors goes up in value, it may be for the same reasons of supply and demand, but it also might be because the underlying value of the company increased. That's an important difference.
It's the same thing with currency. If the value of the Euro goes up, it's only because of the forces of supply and demand. Maybe more people want to hold Euros (eg. interest rates in the Eurozone increase) or the supply of Euros decreases (eg. The ECB decides to print fewer Euros). There can be many other events and factors that affect the supply of and demand for Euros. Either way, there is no underlying value to Euros besides the paper they are printed on. They are worth what we say they are worth. This is profoundly different than the underlying value of a company like General Electric, which makes all kinds of things that people want to buy. If you own a share of General Electric, you own a share of all of its business and you own a share of an income-generating organization.
Getting back to the main point of this subsection, currency trading is just like making a bet on what the future value of a currency will be. If you buy Bitcoins with US Dollars you hope that sometime in the future the Bitcoins will be worth more than they are today. You hope that your Bitcoins will be able to buy more dollars than a number of dollars you used to buy the Bitcoins.
Note: We're ignoring inflation above for simplicity purposes, but you'd want to consider inflation in any such discussion, crypto-related or otherwise
Bitcoin and other cryptos don't generate income
This was briefly addressed above. Bitcoins are just a "thing." You hope that "thing" will be will be worth more in the future. That's the nature of your Bitcoin investment.
I would contrast this with the nature of many other types of investments. If you purchase stocks, you are hoping that the underlying value of the company (based on many factors) improves. If you purchase bonds, you are effectively making a loan to a government or a company and you are hoping that you are repaid an amount greater than your original investment adjusted for inflation. If you purchase real estate, you are hoping that the price of your real estate goes up. That real estate price is dependent on supply and demand for real estate in the community, but it's also dependent on the rental income your real estate can generate and the improvements you make to the property. In the above three examples, the investments are tied to some kind of cash flow: corporate profits or dividends, interest payments, or rent payments.
With investments in currency, there is no income and there is no cash flow. You will sit with that currency until you are ready to sell.That's why investors who aren't overly cocky about their abilities and who have a medium-term or long-term approach prefer to invest in equities, bonds, and real estate rather than currency. Bitcoins are just another type of currency and they have all of the same drawbacks when it comes to investing that any traditional government-issued or government-backed currency would have.
Bitcoin and other non-currency-backed cryptos will add serious uncertainty (in the form of volatility) to your portfolio
The final reason why you should be very cautious in deciding whether to purchase Bitcoin is that there is a lot of uncertainty and most Bitcoin purchasers seem to have less information about what they are purchasing than a traditional investor in equities would have.
Before you purchase a stock you research the company. You look at their financials and their management. If you are a smart investor you look at the actual company itself. You might walk into a store, look at their product, and really think about what this company makes. You then make a decision based on this information about whether investing is a worthwhile risk.
With Bitcoin, you are investing in a digital currency. There's not store to walk into. You know that the supply is increasing (for now) and that the difficulty of creating new Bitcoin (mining) is correlated with the number of people attempting to create them (attempting to mine for them). You know that you need relatively powerful computers to mine Bitcoin. You hear the news stories about people making money by purchasing or mining Bitcoin. But, how much do people really know? To me, it seems like many people are engaging in classic speculation.
There's no way to know whether Bitcoin will collapse tomorrow or whether it will increase in value by ten thousand times. There's even no way to know if people will accept it in the stores you shop at. There's no way to know what the government will say about Bitcoin. There's no way to know if a competing digital currency that is better in every way will come out tomorrow and Bitcoin will become completely worthless.
Even though it's risky, adding Bitcoin and other cryptos to your portfolio might have a benefit or two
Bitcoin might become something you might want to purchase in the future, even if just for using it as a means of exchange. Bitcoin might or might not last, but it's likely that some kind of virtual currency (be it Bitcoin or another virtual currency that does or doesn't exist yet) will become widely used. Throughout history, currencies change and there's no guarantee that the US Dollar (or any other currency that's widely used) will remain popular. It might just be the case that virtual currency will be attractive and used as a possible means of exchange. It might just be that virtual currency will be like money in the future.
Therefore, we can't completely say that you should never hold Bitcoin or virtual currency. However, if we do hold it, we should hold it because it is a useful and efficient means of exchange, not because we are deluded enough to think that holding currency in general or virtual currency specifically is a wise investment compared to the plethora of other investment options available to investors novice or expert.
And now, given the rise of cyrptocurrencies and crypto assets to quasi-mainstream financial assets, we're dedicated to providing quality, relevant, and interesting material on cryptocurrencies and cryptoassets. Articles on Bitcoin, Ethereum, Ripple, Cardano, and many more cryptocurrencies and cryptoassets can be found on Pennies and Pounds - all that in addition to a plethora of information on what cryptoassets are, how the entire crypto industry came to be, blockchain/immutable ledger technology, mining, proof of work, proof of stake, and how to prudently invest in crypto if you are so inclined (based on your risk tolerance and ability to withstand the volatility that will come with a crypto portfolio).