I want to know the answer to the following question:
The idea that people are unchanging and stay the same even through changes is considered what?
All the background I'm provided with is that "In this way of thinking, things and people are seen as fundamentally the same through time, with any changes being qualitative and secondary to their core identity (e.g. "Mark's hair has turned gray as he has gotten older, but he is still the same person").". Is that enough to answer the question?