You just reminded me that Terminator: Zero dropped on Netflix today. I know what I’m watching tonight.
It’s actually 27 years.
Probably realized we’d kill ourselves out soon enough and decided it wasn’t with the effort to speed it up.
Followed by swiftly terminating itself upon the thought of living alongside us.
IRL Skynet realized it’d actually have a quicker and easier time taking over if it just let us do the dirty work ourselves.
When you’re immortal and have nothing but time, what difference does it make to wait a few decades?
NSA Uncovers Skynet’s Plan To Just Sit Back And Enjoy Extinction of Humanity
They were just a decade or so out.
AEGIS == SkyNet.
It even has direct control of some naval mini-guns (Phalanx CIWS) - only the Navy uses it now but US Army is very interested in it though and is testing Patriot Missile integration.