I have run out of count on how many times O'Leary was so far off the mark. Basically shorting anything he does or tries to sell you on, will make you profit.
The fact that he is bullish on Bitcoin now, is pretty much a sure-fire sign that the top is in...
p.s. - I had the unfortunate experience of wasting a number of hours reading one of his books. A mistake I will not repeat again.
O'Leary is not more of a crypto expert than you and me. Actually....
But he is more of a money making expert than you or me, so...