This article is authored by MOI Global instructor John Heldman, portfolio manager of Triad Investment Management.

What’s a Bitcoin? I’m not sure. It’s claimed to be a currency, just like the dollars in your wallet. Unless you’re a Millennial. They carry no cash. I know. I have two Millennials. My kids. But I digress.

A currency must pass several tests to be considered a viable currency: it must serve as a “medium of exchange” while also functioning as a “store of value” and a “unit of account.”

Think about it. If you are using pieces of paper, or digital money, you want something that will be accepted by others–the medium of exchange–and retains reasonable purchasing power over time–the store of value–while able to measure assets, liabilities, income, expenses–the so-called unit of account.

It could be argued that Bitcoin meets the definition of a medium of exchange. People use the digital currency to buy and sell stuff. But is it a store of value? The price of a Bitcoin started this year around $1,000. Today a Bitcoin can be had for about $10,000. Did the dollars in your wallet increase tenfold? Just a few days ago, Bitcoin was $11,500. Hold on, I just checked my computer. It’s now around $9,600. Is this a “store of value?” Not to me. But I’m susceptible to being an old fuddy-duddy. I guess I’m just not embracing the future fast enough.

As for being a unit of account, imagine you borrowed money in bitcoins. The price of bitcoin soars tenfold. When it’s time to pay back your bitcoin loan, you’d better have enough bitcoins to repay the loan. Otherwise, you’ll likely be paying up for more bitcoins to pay off your loan. That’s a problem.

If Bitcoins don’t fit the classical definition of a currency, then what might it be? Here’s another possibility.

Bitcoin just might be a good old-fashioned bubble, the kind that comes along after years of financial prosperity. The economy is humming along, stock markets are up, real estate prices are up, art prices are up; everything is up. Why not drop the hesitation and get on board the new thing?

How much of your net worth would you entrust to this Bitcoin thing? One hundred percent? Of course not, you say. How about 50%, or even 10%? Still too much? Why is that? Because most rational people have no idea whether Bitcoin, or any of the other “cryptocurrencies” will be around in five or ten years. Warren Buffett was recently quoted as saying “It does not meet the test of a currency. I wouldn’t be surprised if it’s not around in 10 or 20 years.”

All bubbles go through stages, as shown below. First the smart money invests. Maybe not smart, just more adventurous. Invest is probably the wrong word. Speculates is better. The big institutions get on board. Finally, the public shows up, pushing prices ever higher. Awareness turns into a mania. At the top, it’s a sure thing, and everyone is convinced the “asset” is a one-way ticket to early retirement. Something for nothing.

Eventually, cracks appear. Prices slip. Selling commences. The selling starts to feed on itself. The same forces that drove prices into the sky, conspire to drive prices into the ground.

Why is this cryptocurrency phenomenon important? For those of us not involved, it’s probably not. But it’s important for the speculators who think there is an easy path to riches. And it’s another demonstration of the periodic madness of crowds. Otherwise rational people can get caught up in very irrational pursuits. The fear of missing out can be a great motivator. It can lead to financial reversals and even disaster for those who hang around the party too long.

If you do find yourself bitten by the crypto bug and the chance to make a fast buck, here’s a bit of advice. As in Las Vegas, only wager whatever amount you are willing to lose. These things usually don’t end well.

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This post has been excerpted from a recent issue of The Triad Perspective.

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