What's never talked about is the shot Conor takes from Aldo. He also landed flush, but Conor's big head took the blow no problem.. Spoiler Reminds me of Rocky and Apollo...
Aldo landed clean, but Conor landing first took some momentum out of it. Had Aldo landed first, it may have been a different outcome...maybe.
Conor got hit more straight on, though, and didn't have the head rotation that Aldo got hit with. People get knocked out when the brain experiences high acceleration, and this is easier to do by rotating the head since the muscles that turn the head from side to side are substantially weaker than the muscles that pull the head forward. This is why the chin is a "knockout button".
This smells like a pre-emptive look how magical Conor was just in case Cowboy does beat him. I'm not buying it.
Conor didn't bother blocking it or moving out of the way as he was waiting for Aldo, and knew he had the better shot. As he said after the fight, timing and precision beat speed. Also despite it looking like Rocky lands the cleaner punch, Rocky says Creed won the fight. So they're actually opposites.
Aldo's circuit was already dead by the time it hit, which is why you can see his muscles all floppy as it lands, so Conor took about 10% of what it would have been had Aldo been awake Still though, it's a great example of how Conor plays with fire If he misses and Aldo's still awake when Aldo's punch lands? With Aldo throwing ALL of his weight into it in a way he never ever does usually It's a whole new world