[scotty79]

> electrons shells

Has almost nothing to do with actual orbitals. "Filling electron shells", "octets" are just idiotic old rule of thumb ideas only accidentally aligning with reality.

> wave function collapse

I think it's going away pretty fast as we exprimentally find quantum behaviors in increasingly macroscopic objects. At some point it will become clear that nothing collapses into particles and it's just that through interaction wavefunctions narrow down when they exchange some energy and momentum. But other interactions can spread them apart back again. We are gonna create consistent description of the process in both directions.

> pseudo-vectors

they are still used but they are gonna be replaced by bivectors as they are more natural

> relativistic mass

true that it's partially sovled, but we need a generation or two of people not mentioning at all in educational context or metioning it negatively for it finally go away ... today it's still treated as "useful educational metaphor" which it is not

> xyz

Basically breaking down math calculations to coordinate wise caluclations

People will stop doing that because most symbolic maths in education is going to be done with computers and rarely anyone will be doing any element-wise transforamtions on anything.

[gus_massa]

> electron shells -> octets

It's a good rule of thumb for hand waving chemistry. It's not good enough to predict protein folding, but it's good enough to understand how amino acids connect. I don't expect it to disappear.

> wave function collapse

I disagree because I expect a different solution to the problem.

> pseudo-vectors -> bivectors

I agree. We only have to convince the other 7999999998 persons :) .

> relativistic mass

Another good rule of thumb, but I'm not sure for whom. This days nobody has to make a DIY synchrotron at home. It can probably go away, but it will resurface from time to time like a clever trick in a YouTube video.

> xyz

I like covariant equations, so I agree. Anyway, at work we sometimes use some non-covariant approximations but we add a search to optimize the base to get the best one were we can apply to nasty coordinate tricks.

Anyway, I needed like 10 years to understand the difference between a matrix and a linear transformation. 20yo probably only can use coordinates until they grow up.