This is the first time I've seen new tech and felt a twinge of fear instead of thinking "oh cool".
https://m.youtube.com/watch?v=9CO6M2HsoIA
Compare 2:33 in the above fictional video to this real one:
https://m.youtube.com/watch?v=DjUdVxJH6yI
https://www.thedrive.com/the-war-zone/35726/the-army-has-unv...
https://www.msn.com/en-us/news/world/attack-drones-dominatin...
These are previews of future wars, much like the wars in the decades before WW1 previewed the utter slaughter that was to come thanks to the new technological era of mechanized warfare.
Much more accessible to regular people.
Ability to be anonymous and hide in a crowd of drones.