Ok, imagine a planet Nobots Ilan, where nanotech and biotech are physically impossible, but everything else is same as on Earth. On that planet AI still can create its own infrastructure and kill everybody.
1.First, it would somehow enslave part of the humans and kill others.
2.Second, it will use remaining humans to build factories that builds robots.
3. After enough robots will be created, they can replace remaining humans.
It that case AI gets manufacturing infrastructure and eventually kill all humans without using nanotech.
Ok, imagine a planet Nobots Ilan, where nanotech and biotech are physically impossible, but everything else is same as on Earth. On that planet AI still can create its own infrastructure and kill everybody.
1.First, it would somehow enslave part of the humans and kill others.
2.Second, it will use remaining humans to build factories that builds robots.
3. After enough robots will be created, they can replace remaining humans.
It that case AI gets manufacturing infrastructure and eventually kill all humans without using nanotech.