It's amazing what some physical processes can do. During the years I worked with laser physicists, I learned that passive optical systems can do crazy things, such as Fourier transforms.
It's amazing what some physical processes can do. During the years I worked with laser physicists, I learned that passive optical systems can do crazy things, such as Fourier transforms.
Hmm... I suppose it can come across as pedantic, but physical processes as a whole can do anything that can be done, hence it shouldn't come as a surprise that there exists a physical process that can perform a Fourier transform, or any computable process whatsoever.