Usually I say "if you have to ask about it, the answer is no" BUT when it comes to writing, there are few questions. 1. Do you like the idea? 2. Are you ready not give a f about what others think about it? 3. Is it super awesome, the best idea you got in past 10 minutes?

If you answered "yes" to two out of three questions, then yes, you should write it. You should be already writing it.