But … What does one do with 22 tonnes of cheddar? Is there a cheesy black market? Can you buy a wheel off a guy for Bitcoin?

Yes he did. Its the holes. The holes move.

But beyond circuits I, the OC is right. It quickly gets into field theory, where electricity in wires is just a special case.

I put trash on the curb knowing the kids next door will pick it up and use it. They love to score new stuff, and I love seeing an old bicycle or chair getting new love.