Bitcoin could surge to $100,000 by the end of 2021, according to the crypto investor Anthony Pompliano. The coin traded as high as $19,389 on Wednesday and is nearing its all-time high, reached in 2017.

Pompliano, a cofounder of Morgan Creek Digital, told CNBC on Wednesday that demand for the coin was rapidly outpacing supply, especially after its "halving" in May, when the number of bitcoins awarded to miners was cut in half. This occurs roughly every four years and serves to limit the supply of bitcoin coming into the market.

Bitcoin is "the winner of a supply-and-demand exercise," Pompliano said.

Pompliano added that the macroeconomic environment right now was "rocket fuel" for Bitcoin. Low interest rates, money printing, and the Federal Reserve's average inflation target of 2% have driven retail and institutional investors into Bitcoin, he said.

For the last five years, I’ve felt like a lone voice in the wilderness…

Over that time, I’ve been predicting a day would come when Wall Street awakens to the value of crypto assets. Not just bitcoin… but all crypto assets.

And today, we’re on the verge of widespread acceptance.

Despite its recent pullback, bitcoin briefly hit an all-time intraday high of over $20,000 yesterday… And I wouldn’t be surprised if it breaks through again and moves higher from there.

These recent moves are sparking a surge in the price of altcoins (all coins aside from bitcoin). And some of these smaller coins are really starting to move now… For instance, ether (ETH) is up nearly 60% in less than a month… and Ripple (XRP) has tripled since its July lows.

The good news is: There’s still time to get in. But the window is closing.

Here’s why…

For years, I’ve said the overarching narrative about crypto is “adoption.” Going from a small market with a small number of users… to a huge market with a huge number of users.

It’s the same story I saw unveiling in 2003 when I started buying Apple for my brokerage clients.

I got into Apple for one reason and one reason only: It had a great product, the iPod. And the iPod was going to go from a small market of Mac computer users… to a huge market by becoming compatible with all personal computers.

The bet was really easy: The iPod was the best device of its kind in the world… but only a very small number of people could use it. I had read in Apple’s 10Q report they’d be making a PC-compatible version. To my mind, that meant it would be a good bet Apple would sell a whole lot more iPods. So, I had my brokerage clients buy Apple stock.

Today, Apple is the largest U.S. company by market cap at $2 trillion. And if you had invested just $1,000 when I recommended shares in 2003… your shares would be worth roughly $465,350 today.

I’m making the same bet with bitcoin and crypto in general…