You give no examples as to which situations you actually come out ahead from believing in the sunk cost fallacy, and your justification for it amounts to no more than the fallacy itself. “You thought at some point this was a good idea, so you should probably keep doing it.”
New information should not be averaged with ignorance. When you did not know how you would feel that night, you thought it likely you would want to see the movie. but now you KNOW you don’t feel like seeing it. This should have a much stronger effect on your decision than the prior data you had. You’re not averaging two relatively similar pieces of data, you’re putting together more accurate information with information that’s basically a guess.
You give no examples as to which situations you actually come out ahead from believing in the sunk cost fallacy, and your justification for it amounts to no more than the fallacy itself. “You thought at some point this was a good idea, so you should probably keep doing it.”
New information should not be averaged with ignorance. When you did not know how you would feel that night, you thought it likely you would want to see the movie. but now you KNOW you don’t feel like seeing it. This should have a much stronger effect on your decision than the prior data you had. You’re not averaging two relatively similar pieces of data, you’re putting together more accurate information with information that’s basically a guess.