ok, so I made the term “chronolinks” up but it makes sense. Anyway, it seems Youtube have cottoned on to the fact that people are always commenting “look at 1:56 it’s a pie” or somesuch, and now processes that into a link (example below). Once clicked the link jumps to that point in the video you are in. Not exactly revolutionary or a feature I thought I needed, but it works The change is retroactive too so any old posts where someone mentions a time will be clickable too.
Sadly they still haven’t perfected that “stupidity filter”.