I think some people have a hard time understanding that you, me and others who do this for a living have literally hundreds of ideas - we can see a basic market

I think some people have a hard time understanding that you, me and others who do this for a living have literally hundreds of ideas - we can see a basic marketplace idea and spin up a dozen variations based on demographics, industry, etc. Without a solid plan of execution/sales, demonstrated industry contacts and ideally some measure of success in this same industry, me executing your idea is statistically a big waste of my time (and may unintentionally end up tying me to you in ways I don't want to be tied). Lots of downside, very little upside. Now, if you have a huge name and track record... I can get it. Years ago talked with someone who'd done some deals with the 'guerilla marketing' guy (Levinson IIRC). After a while, he was more or less just licensing his name/brand for a cut, but it was worth it because there was already a track record and built-in audience - anything with his name/brand would be guaranteed some degree of sales on day one. Most people who've approached me with ideas like that haven't had that success. Even in one case where I was working with a guy who had executed multiple businesses and had good success (one 8 figure exit) - we just couldn't work together - our expectations of each other never synced up.