okay so we learned what "tech" means in the context of smash and why did we never know this was a thing you can do, that should be in a tutorial or something
it means hitting the shield button right before hitting the floor or a wall after you've been hit, and it completely cancels the stunned-on-the-floor animation that leaves you vulnerable
@Felthry I did this back in Brawl during a Sudden Death match with someone, and they accused me of glitching the game.
I didn't know what to call it, I just knew how to do it.