I don't really get your reaction here. The obvious takeaway from that point is a) determining the impact of any given technology is difficult and may take decades to centuries, and b) you should be aware that even IF your assessment of the technology is correct in the long term, you could still lose all of your money by investing in it. It's in no way an endorsement of investing in crypto, and I don't think he's responsible for every conman who will selectively quote him to shill a product.