If the non-tech guys says "Here is my idea for a product, please build it" that is worth very little. If the non-tech guy says "Here is my idea for a product.

If the non-tech guys says "Here is my idea for a product, please build it" that is worth very little. If the non-tech guy says "Here is my idea for a product. I've been working in this domain for 15 years and I know what the pain points are. I have XX customers that have expressed an interest and paid a deposit (or committed to pay once the company starts)." then that I think is worth something.