Why does the continuous electromagnetic spectrum have a sharp limit on the short wavelength end?
There is a simple explanation for the sharp limit on the short wavelength end of the electromagnetic spectrum. The shortest electromagnetic waves are generated by the reactions of subatomic particles. At some point, it just isn’t possible to generate a higher frequency electromagnetic wave. We can imagine them, but they cannot be “made” by us (in particle accelerators) nor are they “caused to occur” in nature (by catastrophic cosmic events).
