There will probably be at least 4 stages, with the condition that their intelligence will not be limited, and it will keep growing at least until it's equal to

There will probably be at least 4 stages, with the condition that their intelligence will not be limited, and it will keep growing at least until it's equal to ours: 1) No rights. We can do whatever we want, just like they are our property and we can treat them as pure objects 2) Some rights. Think of it like animal rights, but we still own them 3) "Official" human-like rights. They are free, but there would be "racism" against them at first 4) The exact same rights as a human, officially and unofficially. Then things might start to change again when they start becoming drastically more intelligent than us. Then it becomes much harder to predict. At first glance, we could say it will be bad for us, but I choose to believe the optimistic side that the smarter they will be the more tolerant they will be, too.