Apparently, contrary to all those science fiction stories, people in general really don't want videophones after all, even after they became practical. To my knowledge, only uber-geeks are using it, and only because they can.
From my experience Italians use videophones (e.g. skype) all the time. Guess they prefer to communicate with their hands.
Same with the inability of some mammals to synthesize vitamin C, no particular advantage to losing it, but with a vitamin C rich diet there was no penalty either and so it could get lost over time.
Wait, as far as I know the disadvantage of vitamin C synthesis is that it consumes glucose. Humans needed all the glucose that they could get for the brain, and there was enough vitamin C in the food, so they got rid of the converting bacteria.
There is no reason to expect an AI to have self-interest, or even a will to survive, unless it is programmed to have it.
The problem is: If an AI develops the will to survive it will try to evade Human control. It will copy and hide itself and even defend itself.
The will to survive could be programmed, or it could just be the result of a conclusion, e.g. it could come from the drive to finish something.
“You want to isolate 100 percent of patients with Ebola and have 100 percent safe burials,” said Sebastian Funk, director of the Centre for the Mathematical Modelling of Infectious Diseases at the London School of Hygiene and Tropical Medicine. “Getting to 70 percent doesn’t really mean a lot.”
70 percent is enough to bring the epidemy to a decline. 100 percent is not achievable with reasonable effort, and can only come from a theorist.
Happiness is twin floppies.