Nobody understands quantum mechanics. Lots of people know how to apply it. I don't think quantum technology is going to go anywhere until physicists revamp the theory & the pedagogy in a way that makes it comprehensible.
I say this as someone who passed 2 semesters of graduate QM.
> I say this as someone who passed 2 semesters of graduate QM.
THat's funny because my EE math concentration was on advanced calculus. I took two semesters of a-calc and got A's, but I only know how to compute a Jacobian and apply it, not its origin story. It's a very weird feeling to understand the motions but not the ... depth?
I say this as someone who passed 2 semesters of graduate QM.