Sunk cost fallacy. A better way to look at it is “given I have $700 cash would I buy $700 worth of Bitcoin today?”. If no, cut the losses on your $1000 and at l

Sunk cost fallacy. A better way to look at it is “given I have $700 cash would I buy $700 worth of Bitcoin today?”. If no, cut the losses on your $1000 and at least walk away with $700.