This is both a good piece of advice and a bad piece of advice. The fact that someone can copy your idea is really not of great concern if you execute well. Th

This is both a good piece of advice and a bad piece of advice. The fact that someone can copy your idea is really not of great concern if you execute well. This is very true. But a business is not all [in] the execution. Execution is important, but if you spend all of your time working on a useless or stupid idea then you have just wasted lots of your time, effort, and possibly money. Execution is only good when you have a decent idea to start with.