To give up or not give up. That is the question.You know the startup world, everyone is always telling you how to build, push on, expand, raise millions, get more users, iterate and grow. Nobody really tells you when and how to give up. Nobody really advises you on the art of giving up and actually knowing when to quit. I want to explore that today. Remember the guys who founded Instagram? They went on to build an AI-driven news app called Artifact just barely a year ago. Now, they are callin...