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Periodic love has an exact Fourier representation. True love has an exact Fourier representation only if we assume a periodic continuation equal to the lifetime of the individual. And, it goes without saying, convergence fails at love discontinuities (well, it converges, just to the wrong value). Divorce lawyers live for this kind of talk. Artist's rendition of 2D FFT, including copious sidebands. Accompanying text proclaims the love.