I was proposing the sale of a nonexistent product, but making clear that it doesn't (already) exist and telling properly how it will look like. Also, this produ

I was proposing the sale of a nonexistent product, but making clear that it doesn't (already) exist and telling properly how it will look like. Also, this product should be feasible to do in, say, less than a month. So, it's kind of a preorder, but a cancellable (by the seller, obviously by the customer too) one. It's a very tough sale, but precisely for that is a way of discarding business/side projects ideas in a massive way. If you can sell it before it exists, it means that there are people VERY interested in such a product, so you are on the way to success. Disclaimer: it's very easy to speak and very difficult to put in practice, and I have never tried.