[randomsearch]

Don’t set up a legal entity.

Find the nugget of your idea. Do something to get market feedback.

Eg your idea is Uber for pet food - go interview people leaving a big pet food store and ask them if they’re interested. Old school market research.

Or say your idea is a sports news site for minor teams. Set up an MVP that serves for your local team and promote it, see how many many people go to the site. MVP could be a stream of article links from other sites, or perhaps better a newsletter via email. On site have sign up box for other teams.

Market feedback is key. Once you have a good signal, continue building and gather more feedback.

[midway]

While I agree with most what you wrote, I still think that setting up a legal entity is a good first step. Most wannabes struggle with starting. They wait for the perfect idea, the perfect team and so on. They never start. Even if you start with a crappy idea. Ideas will evolve, get pivoted, whatever. My message is about to start and not wasting your time with inactivity like reading random Google Docs by random dudes.