[Jlagreen]

My cost base of Nvidia is $1 so for me to lose is that Nvidia gets back to way before COVID valuation.

Nvidia is more worth than $1 per share on gaming alone.

[SecretDreams]

Totally fair. If you've got a great cost basis, you can stress less. The question then becomes what feels worse:

Watching a position you sold double or watching a position you're holding get cut in half?

[Jlagreen]

There is one answer to this question which is called options. Selling short term OTM CCs with half of premium being used to buy ITM Calls (1/3 protection of the CC), OTM Calls (protection against gap up) and longterm OTM Puts (earn money when Nvidia nose dives).

[dehrmann]

This looks like the house money effect. It's sort of a corollary to the sunk cost fallacy.