Agatha and the Jason...tinkering with new vehicles for fun.

[robkelk]

That is, using handwavium on the tools to build the weapons, not the weapons themselves.

Ah, I see that somebody else has noticed the loophole in Rule #1)b)iv).

Say our genius creates a "fabber." The handwavium effect is that he can use materials a current hardtech fabber cannot.

But where do those materials come from? Nobody's managed to handwave a nanotech fabber into existance, and I'm not aware of any larger-molecular-scale fabbers that can create the materials needed for many of the proposed energy weapons. (Not trying to shoot down the idea, just asking for clarification...)
--
Rob Kelk
"Governments have no right to question the loyalty of those who oppose
them. Adversaries remain citizens of the same state, common subjects of
the same sovereign, servants of the same law."

- Michael Ignatieff, addressing Stanford University in 2012