You go to the cinema with a friend, and after watching half the movie, you realise that it’s terrible. You go to leave, but your friend points out that you’ve already watched half of it and spent all the money on the tickets, you might as well stay
the sunk cost fallacy is when you believe that you continue doing something just because you have already put in risk, time or money.
THERE IS NEVER A REASON TO FOLLOW THESE THOUGHTS
You should never make any decision while putting thought into what you have already invested.