-To date, I am unaware of a single bitcoin prediction that John has missed - maybe you can enlighten me.
Oh buddy. You must have been living under a rock. Pretty much every prediction he's ever made about any cryptocurrency - and especially bitcoin - has been extraordinarily wrong.
Here's just a couple of examples.
December 2017: "Bitcoin now at $16,600.00. Those of you in the old school who believe this is a bubble simply have not understood the new mathematics of the Blockchain, or you did not cared enough to try. Bubbles are mathematically impossible in this new paradigm. So are corrections and all else" (BTC of course was in a bubble which popped less than a month later)
May 2018: “Bitcoin will surpass $15,000 in June. Will dip in July.” (BTC went down from $7500 to $6400 in June)
His predictions are now much more general and he doesn't give dates. All of his altcoin predictions have been dead wrong. Every. Single. One.
The man is a paid liar and everyone who makes investments based on his words stands to lose a great deal of money.