Except a proof of concept that doesn't scale is explicitly not a proof of concept The concept doesn't work because it's physically impossible and having a low

Except a proof of concept that doesn't scale is explicitly not a proof of concept The concept doesn't work because it's physically impossible and having a low power example is all you can do without severe issues. In this case having a small scale example doesn't tell you much if anything about the large scale behavior ( among other things nonlinear effects start happening at high power physically )