Spoiler Thread: Avengers Infinity War

So apparently there's this recent theory that's gaining traction, and is basically accepted as fact by a bunch of people that when Thanos punched out Cap at the end of the movie, he killed him and it was the Time Stone reversal that brought him back. I've never seen this until just now, but it seems to be a pretty well accepted theory (I thought he just punched him out).

Did y'all think this? Did that occur to anyone?