Almost like there's no free lunch. I don't see quantum computing ever really taking off without a fundamental breakthrough in our understanding of physics.
Would love to be proven wrong though if my understanding is incorrect and there's actually a feasible path towards quantum computing at scale.
I dont think there is any fundamental physics reasons preventing quantum computers. My understanding is it is an engineering problem. A hard one no doubt, but not a fundamental physics one.
Anyways, my point was that getting a quantum computer at a decent scale is really difficult. If we manage to overcome that burden somehow, the difference between 2048 bit rsa abd 4096 bit is peanuts.
Would love to be proven wrong though if my understanding is incorrect and there's actually a feasible path towards quantum computing at scale.