However, if you want to make $$$ into $$$$ than you should just invest in a diversified stock portfolio and expect a 5 to 10 percent increase per year over the course of a few decades. Do not panic, do not sell, do not try to game the market, do not do anything but wait.

I agree with this advice with the caveat that there is much evidence to suggest a better entry point may be coming in the next year or so. If the plan is to start a monthly deposit, then no big risk of starting now. But, if pabs wanted to drop a chunk of money down upfront, he might consider waiting for the next recession/correction, which come in cycles that we haven't yet been able to escape.

I got very lucky by starting to invest in earnest in 2009. Had I started in 2007, my portfolio would have less than half the value it has now.

BTW, I wish the US treated ETH and BTC as currencies.