I was about to pick him up on this one, then I remembered what he was actually doing. It's hard to keep track of SM sometimes since his idiot-savant style of laying-out a problem and churning through interminable working often hides the essence of his idea, and frequently leads him into stupid errors.

This time, however, he gets away with it.

The plan is to put the lens *near the Sun*, where power density is higher.

Then, like a naughty schoolboy with a magnifying glass, or Ming the Merciless on a bored afternoon, he focusses the rays on Earth, or at least on a secondary mirror in Earth orbit.

As I said, A multi- GigaWatt deathray beam. Makes nuclear WMD look tame!