necropost or not, It's always amazing to watch stuff like this. Not really so much the laser, but just thinking about the technology and tolerances required for these things to work, as well as the controlling of variables like temperature throughout the whole structure, which is what's being done with the various vents on the structures opening and closing throughout the video, not to mention that they are something that gets exposed to the environment almost nightly, yet has to be maintained at near cleanroom conditions. They can't just send a dude in the telescopes with a roll of paper towels and a bottle of windex after all.