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▲ kingstnap 4 hours ago

Yeah its ridiculously small, but any improvement on n log n is wild.

Like there is somehow redundancy in a fourier transform that makes it sub Linearithmic?

Which low and behold ->

130. Fourier transforms below n log n.

▲xyzzyz 4 hours ago | parent [-]

They also separately give algorithm for Fourier transform over complex number faster than O(n log n)

▲saalweachter 3 hours ago | parent [-]

Wikipedia just told me there's a galactic algorithm for integer multiplication in O(n log n) based on FFT so I'm guessing those two proofs are related.