system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: why don't hockey teams hire a 500 lb. goalie to block the whole goal?

Title says it all. Why don't professional hockey teams just hire a massive dude to block the whole goal to win every game?
gpt
There is a sports science episode covering this.

It basically boils down to 1)It does not cover the whole net. And with the assumption that a 500lb guy isn't too athletic, the open part of the net will just be free goals.

Also regulation sized protective equipement does not cover a 500lb man.