That's the thing, there is essentially one FFT algorithm. If you want to include a big family of algorithms as Monte Carlo you better make place for it further

That's the thing, there is essentially one FFT algorithm. If you want to include a big family of algorithms as Monte Carlo you better make place for it further down the line after Euler integration or possibly just numerical integration, and it's starting to become a question if maybe the list should simply be "addition and multiplication but with computers".