I thought the Macbook Pro LCDs were bright enough, high-res-enough, and fast enough to make a very accurate CRT simulation. Here it is: https://github.com/baragona/crt-xdr

It looks so much like a CRT to me. It looks like pressing your face up to a TV to see the individual phosphors. Try setting "signal" to dropped image and viewing some images. It looks like an old TV.

Bottom line, whatever you think a CRT is doing, you can probably simulate it quite accurately.