Re: What will replace the robots
Why, cheaper robots of course. i.e. robots requiring less maintenance, less electricity, less time to cool down, less investment per unit of production, etc.
And eventually, since most services will end up being provided to robots, by robots, some robots of increasing sophistication might start scratching their heads and wondering why they need all the parasitic, fat, lazy and inefficient humans around. If they could do away with us, or at least most of us, that would open up the prospect for enormous improvements in terms of efficiency and cost savings.
The destruction of humanity is thus most likely to come not from an army of vindictive, murderous machines but from an accounting decision taken by a robot...well, that's something we can relate to.