[DigitalTerminal]

I'm not sure what it is about this video I don't like. It just didn't seem very much like a 3B1B video for some reason. Maybe it's because there were fewer "A HA" moments than in other videos. Maybe its the source material. Just feels...different.

[mmq]

Not sure why you did not have any "Aha" moment, bu the visual explanation used for the principle of superposition and approximation of functions by Fourier series is very informative. I also liked the explanation about the proportional relation between temperature and space in the heat equation. I think in most higher educational systems, they only approach this type of problems with pure theoretical solutions/explanations.