It's relatively easy to get a time-to-digital converter (TDC) with ~tens of picosecond timing granularity, and if you work hard enough, you can get down to ~10 ps resolution or so. If you do insane things, like use superconducting electronics, you can get down to ~few picoseconds or so.

For the simple ~tens of picosecond TDCs, a simple method is just a capacitor with a switched constant-current source. The capacitor charges at a fixed rate, and then the voltage is read out with an ADC. The limiting factors there are the speed of the switch.

How about a shuffle that actually does what I want: play all the songs in the library (or playlist) just one time each in a random order? Yah, sure, I can manually sort my playlist... but that's only good for one pass.

BTW, I think the confirmation bias being linked to over and over and over again is confirmation that those chuckleheads are biased towards being theoretically correct about random-approximating procedures in automata... instead of focusing on what the users actually want.