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For comparison 320km2 is about 2.5 San Franciscos

I asked chatgpt to make a quick demo to demonstrate the size of the 18x18 km2 square:

https://lxe.github.io/map/

Neat. How did you ask it to make that? Do you mind sharing the transcript?

Here you go! https://chat.openai.com/share/024a7117-f3d0-4a23-8186-86eeea...

yeah, when you look at that over the default location over London, it looks big. Moving it closer to the Western US, it looks tiny

Size of a Texas ranch. Call it “reverse solar” and you might have a winner.

> That can be constructed at $1/w at $100 billion.

Is this in space or on the ground?

Lasers are running at 30-40% efficiency so for a 100GW laser you need 400GW power plant. But the power plant and transmission has some losses so you probably would need 500GW

I think for the foreseeable future we'll have better uses for the electricity than powering a laser to accelerate some probes.