There are 2 possible cheats I can think of to attenuating lasers.
Firstly, attenuation depends on radius of the emitter. If you have a 100ly bubble of your tech, it should in principle be possible to do high precision laser stuff 200ly away. A whole bunch of lasers across your bubble, tuned to interfere in just the right way.
Secondly quantum entanglement. You can’t target one photon precisely, but can you ensure 2 photons go in precisely the same direction as each other?
There are 2 possible cheats I can think of to attenuating lasers.
Firstly, attenuation depends on radius of the emitter. If you have a 100ly bubble of your tech, it should in principle be possible to do high precision laser stuff 200ly away. A whole bunch of lasers across your bubble, tuned to interfere in just the right way.
Secondly quantum entanglement. You can’t target one photon precisely, but can you ensure 2 photons go in precisely the same direction as each other?