Define majority... define minority. Not numerically (which is clear enough), but politically.

So who are the minorities or the majorities in a society or country? Mathematically speaking, the group with the smaller number of people is the minority and that with the larger number is the majority.... but is that also the case politically?

Is it about which group has more "power"? What sort of power?

And if power is something that flows, when does a minority become a majority... and vice-versa?