Uow, I've never seen this piece. So, is it certainly impossible that a new, disruptive processing technology is invented? I mean, that could process without the limitations we currently know?
To simplify, what a quantum computer does is it has a superstate which makes it quite faster. SHA 256bit for a normal computer is the same as SHA128 for a quantum computer IIRC. Theoretically even with huge gains in the computational field, we could upgrade to SHA 512 and would not have any problems in the foreseeable future (if SHA itself doesn't get broken). People worry about this subject more than they should.
Update:
You remind me of Mike Hearn. A flippant arrogance that implies an inability to see things in broader perspective, to consider consequence, or implication, or alternative. You represent the very worst fears of those that look at your involvement in these matters.
Welcome to the ignore list useless shill.