I feel that it’s a bit of a false dichotomy to say that if WW2 didn’t happen then those things also wouldn’t happen. There’s nothing inherent about WW2 that had to happen for those advancements - they may have just been achieved faster due to the war.

Does the banana for scale have a source for its measurement? I can see 1 banana is 17.8cm.
Presumably that’s an average?

A lot of the new systems can use battery powered cameras that are motion activated - they can last for a month+ on battery because they only turn fully on when they detect motion.

You’re right though - if it’s mission critical don’t rely on wireless.