I wrote up a bit about it here, from what I could piece together:
https://lifeinthesingularity.com/p/googles-breakthroughs-in-...
https://lifeinthesingularity.com/p/googles-breakthroughs-in-...
i try to operate at zero-basis and quickly scaffold to a simplified model so ANYONE can grab the "why this makes nerds say wow" factor haha