Scary amount of weight to have strapped across your back (for even huge, gassed 300-pounders), never mind breaking at the knee to actually initiate a deep-knee bend.

For my liking, he could have sunk a
few more inches, but this rep is miles beyond some other record lifts I've seen.
(Someone in this thread says he doesn't know what the big deal is. To state such a thing is to confess you know ZERO about heavy lifting and what it feels like to ponder the actual possibility of being crushed to death under a barbell.)