I'd argue that this story supports the "idea is worthless" hypothesis. Your idea is the initial problem you want to solve or new feature you came up with you'd

I'd argue that this story supports the "idea is worthless" hypothesis. Your idea is the initial problem you want to solve or new feature you came up with you'd love to make a product around. The business model is built upon that initial idea, but it is part of the execution. The idea itself is worthless, the business model built on the idea (or lack of one) is valuable. That might seem like splitting hairs, but I gaurentee most ideas don't translate directly to a business model without a whole lot of work. And that work is part of the execution. If you don't do that work (and get stuck building on a bad business model), you still have an idea, you just didn't do the proper execution.