The most important misunderstanding about quantum computers IMO is the largely implicit idea that companies in 2025 are able to build sufficiently fault resistant systems.

Google can’t build a non-racist image generator, or stop itself from ruining its own products, BUT they’ll build a 10 million qbit QC before 2035?

Come on…

If it were batteries, I might’ve been there with you. Better batteries will be incredibly profitable, there’s a real race there. But compare the hype and the results surrounding SS batteries since 2015, and ask yourself whether it makes sense to be more optimistic WRT a technology that is less useful, less profitable, more esoteric and edgy…

I think not. Indeed, I don’t think Shor’s algorithm will be breaking anything in my lifetime, even though I think we’ll have fusion. It’s not pessimism, merely a proper respect for how hard it is to build quantum computers.