That’s a moiré

“You don’t need [machine learning,]” Bryan said. “What you need is inverse Fast Fourier Transform.”

~ “Shift Happens” from,

I stumbled over a blog post, containing a pull-quote where someone mentioned inverse Fast Fourier Transform. (A mathematician named Fourier invented a fast way to do a certain sort of transformation that comes up a lot in science; It’s called a Fast Fourier Transform. There’s also a way to undo that transformation, called “the inverse”. Thus, Fast Fourier Transformations (FFT) and inverse FFT. Well, FFT/IFFT is the first thing I can recall that I could not understand. It was shocking. Every other thing I’d ever encountered was easy. But there I was, 20-some-years-old, in graduate school, and I encountered something that was beyond me. I think I had it sorted about 6 times and every time, the next morning, upon waking, it had fallen out of my head. Holy inappropriately long parentheticals, Batman!)

Anyway. Blog post. IFFTs. Time machine to the early 90s. Emotional vertigo.

…and then I clicked thru to the magnificent post which is brilliant. And then I realized the by-line was, “Shift Happens.” o_O This entire thing. I’m in nerd heaven.


PS: Sorry, what? Oh, you read my title, heard the Italian word, “amore,” and wanted a, That’s Amore! pun? Okay, here: When an eel climbs a ramp to eat squid from a clamp… Yes. Really.