We already know that a capable quantum computer can do a lot of things faster than a classical computer and it's undoubtedly going to happen within the next couple decades if not sooner. I think he's just planning ahead and riding the bleeding edge technology.
Edit: Thanks everyone for pointing out a flaw in my opinion. For anyone actually interested in delving into the discussion of whether or not quantum computing is faster than classical computing https://cstheory.stackexchange.com/questions/24943/is-there-...
Edit: Thanks everyone for pointing out a flaw in my opinion. For anyone actually interested in delving into the discussion of whether or not quantum computing is faster than classical computing https://cstheory.stackexchange.com/questions/24943/is-there-...