He just explained why. Because packaging, QA, setting up a storefront, customer service, the sum total requires significant up front investment to get off the ground. Good luck raising money when your pitch is "we won't be greedy and do the things that could make even more money".

Or was your intent merely to taunt him for failing to be independently wealthy?

hey dude, it's a free idea, you're more than welcome to it. I just thought of it a couple hours ago as I was writing that. I thought it was pretty good - especially the part about using an old smartphone with Tailscale as the hub because it has backup connectivity and power. Maybe I'll throw a prototype together this weekend if I have nothing better to do. Or maybe you should. You could be that guy.