[mmooss]

> This gadget seems to have durable appeal to entrepreneurs and/or suckers.

Or most research and technological development requires years or generations of experimentation and failure before success. And every time, the creators and innovators are told they are wasting their time, suckers, look how many failures came before you, ...

[eesmith]

Consider the steam powered airplane. It required decades of experimentation and failure before success, and that technical success was a dead-end.

[mmooss]

Consider the airplane.