Comment by westurner

FFT describes everything with sinusoids by default. For QFT, it's wave functions. Wavelets are more like NN neurons that match (scale-invariant?) quantized sections of waveforms.

Fluids are decomposed into things with curl.

A classical universal function approximator is probably not sufficient to approximate quantum systems [...] https://news.ycombinator.com/item?id=37379123