Effective use of natural sunlight in a habitat.

This has come up before. At 10W/fibre, 300 fibres represents 3kW of heat. If
there are more than a thousand people cooking at the same time, you're
running into Boeing Airborne Laser power levels. I believe the last time it
was pointed out that a broken electrical wire short circuits, but a broken
optical fibre melts things and people.

And having recently installed a 10kW electrical shower, and the needed
wiring, you are out of your tiny mind if you think it's going to be even
remotely practical to install a wire 'less than 2cm in diameter'!

John