Very easy to detect and deal with, especially when you're talking about fixed positions like your home.

But impossible to detect if you aren't standing in the beam path. Or use fiber, and it's impossible to detect if you don't trip over the fiber.

	▲	pixl97 4 hours ago \| parent \| next [-]
		Man, I don't think you've ever actually built free optical laser networks, they are kind of a pain in the ass and everyone is going to notice you've got one stuck up on a pole. The next time its foggy or raining a tuned photon sensor to the spectrum that these devices run at will light up like a Christmas tree. If you're really intent on catching said people, you'd have drones flying around sprinkling light chaff and detecting where it detects optical scattering.
	▲	adrianN 4 hours ago \| parent \| prev \| next [-]
		It seems relatively simple to me to detect fibers hanging around cities as soon as the network is bigger than two nerdy neighbors. Same for lasers and telescopes.
	▲	saidnooneever 4 hours ago \| parent \| prev [-]
		ud need tons of beams tho do maybe its easy enough to segment the network badly by finding bunches of them?