That's exactly the problem in our society right now. How am I supposed to prove this without building a prototype?

I don't have the resources to personally build one right now, and nobody else seems to care. Our entire society stands to benefit from this, yet I'm expected to complete this work alone?

I used to be altruistic and optimistic, now, not so much. I'm inclined to let the world rot while I take my sweet time. It's not like I have much choice in the matter anyway.