Unreal. 5 seconds was not broken too long ago. Crazy to see the 3 second barrier looking like a possibility. Pretty astonishing. Is it even possible without skipping some steps?
All the people solving in seconds aren't even using the same methods, so some will be better at planning while they look at the cube before the start, some will have faster motor skills.
And any position can be solved in as few as 20 moves, aka “God’s number”
The site states "20 moves or less" which is stating a maximum.
[0] https://en.wikipedia.org/wiki/God%27s_algorithm
[1] https://jperm.net/3x3/cfop