I think that is sort of the point of this guy’s particular speculation. He reckons by 2020 Bitcoin, et. al. will be much more widely spendable so there won’t be as much need (if any) to bother with turning it into cash.
He may be nuts but to be fair, he doesn’t seem to consider it anything other than a punt which he hopes will do really well but it’s not putting his family into actual poverty.
