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This definitely applies to everything in time, but right now the bigger and slower moving the target the more susceptible to be overwhelmed by a swarm of smaller faster moving things.
I think this is reflected in recent manned armoured vehicle design. There appears to be a tendency towards smaller and faster vehicles that can launch drones and perform reconaissance with the capability to pop smoke and return fire using a cannon. Some of these new vehicles are designed to be remotely operated.
Yup, true.
Tanks will do OK for a good while longer.
But US military exercises involving an entire air craft carrier fleet showed on multiple occasions that a swarm of fast moving small craft can overcome things.
One of the first links I could find: https://www.pressdemocrat.com/article/news/2002-exercise-showed-how-swarm-of-small-craft-could-overwhelm-u-s-ships/
This definitely applies to everything in time, but right now the bigger and slower moving the target the more susceptible to be overwhelmed by a swarm of smaller faster moving things.
When I saw the initial Ukraine invasion news about the traffic jammed convoys I did think that this would not happen in the future... another 10-20 years from now and a sitting duck like that would be overwhelmed by kamikaze drones.