I don’t know whether or not you’re a musician (though you’re giving off major false expert vibes with your snap judgment and bizarre implication that sub-bass notes are unachievable), but you’re quite simply wrong.

YOU may not have been able to find it, but here’s a video of him giving a short surface level tutorial of how he hits low notes and here’s part one of a Q&A about it where he, amongst other things, talks about subharmonics specifically.

Tl;Dr: you’re wrong and quite possibly a poseur yourself

🥱