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So all of the people who studied QM know the famous Schrödinger equation. I have read that it was not derived, but it is a postulate; something that is just real.
Some people have tried to explain to me that it comes from another more general (I think) equation that has to do with the Hamiltonian, but please do not try to explain it to me that way because then it just becomes maths (if there isn't another explanation then just tell me so).
So physically, intuitively, how did he come up with this? It is a postulate, yes, but nonetheless, Schrodinger did not wake up one day and suddenly knew what the equation was.