"Yes, you have named both. Firstly, so many could not be unnoticed. And secondly, it is physically impossible- Exiles still consume power! And the entire point, the drive behind this System of purpose, is entirely releated to Machines having to have need because the power available is limited. Not only is it impossible for things to be that ay, they would be llogically ridiculous.
"Not that things would be that way anyway. One would assume in such a society that termination would be better enforced. A significant amount of Machine society would be dedicated to hunting and killing unneeded Machines. A state of affairs which leads us to the second reason why this idea of Machione society is wrong. The fitst, as I said, is purely practical. Now we look at the second, the reason all this is not so, based on what we have discussed so far."