A few months is 2. For the sake of this hypothetical let’s say it’s 3.
You’re saying that someone can build a product that’s capable of having investor level revenue within a few months? Or not even revenue, but more than 5 companies using it? This one person is not only building a fully functioning software product that’s capable of being useful to companies, but also doing high levels of networking to find those customers and users. They’re doing this all within 3 months? I just don’t see how that’s possible. The fastest moving early stage teams I’ve ever seen have gone to market in no less than 4 months, and that was with multiple people working on the problem.
I think at a minimum you can expect it to take 6 months if you’re going at it alone. Certainly less if you have other co-founders.