I don't think that he will anytime appreciate Bitcoin or any tech related product just because there is no tangible output and his views are correct for the 20th century but we can not apply the same parameters to the world of 21st century where information is a new money and it is not tangible every time.
He might have been cautious about the dotcom/tech bubble.
It's true that he lost his chance to double or even triple his money with these emerging technologies, but we cannot remove the fact that he's still a billionaire and will eventually die as a billionaire.
i am curious, what are they afraid? To lose their wealth? Life is short, u cant earn all money in the world
Afraid? - NO!, most of these billionaires are just cautious.
it will be no easy to control the global market anymore, anyway, fcuk them,
Are you sure that it's not easy to control the crypto-market? What can you say about those whales and the cartel? Haven't you experienced the volatility of this market, or did you even bother to look the charts on CMC?