>if you don't understand a technology and if/why it really is superior to existing solutions, you almost certainly aren't going to make money off it. Something

>if you don't understand a technology and if/why it really is superior to existing solutions, you almost certainly aren't going to make money off it. Something closely related, but if you do understand a technology, and if/why it really is superior to existing solutions, you would almost certainly already be making money with that technology. So you do need to question a lot of investments into technology firms that have no revenue? They have no enormously expensive hardware component. (Like there is with, say, concentrated solar thermal technology.) There is often no onerous federal regulatory framework they need to navigate. (As exists for FDA compliant health care tech for instance.) Why are people laying out these enormous investments if not something of a combination of vanity and entertainment?