Nope. It's usually ascribed to J M Keynes, buy apparently it was actually one A. Gary Shilling: https://quoteinvestigator.com/2011/08/09/remain-solvent/

Eventually it will come down, yes. But you're the option seller, so you can be assigned anytime. I assume this is a naked call you sold (not covered). So you might be forced to buy shares at a really high price and deliver at $320. The big risk with selling options is early assignment.

Option sellers eat like birds and go to the bathroom like elephants.

I agree, I put in a market order to close the position last night and it filled at market open, so I am safely out.

Maybe OP thinks it literally can't go tits up?

No you'll just get assigned and lose $500k.

Just buy an lower priced call as a hedge to define your risk. If you get assigned you could land a pile of GME that goes to zero.

No one is dumb enough to sell a call. Apparently we found one guy.

Opening a spread would make you a ton of money for sure, but seems unlikely one would be sold.

That would give him a bull position and cost money, which probably is not what he had in mind.

Perhaps you mean he could buy a higher priced call.