It reminds me of the "sounds like a bad idea" / "is a good idea" Venn diagram for startups. If it sounded like a good idea and was a good idea, then a bunch of

It reminds me of the "sounds like a bad idea" / "is a good idea" Venn diagram for startups. If it sounded like a good idea and was a good idea, then a bunch of people would have already tried it. There would be steady progress by many people, and steady competition. There would be no "breakthrough" by a single person / company. If it sounded like a bad idea and was a bad idea, then either nobody tried it, or a contrarian tried it and quietly failed.