Derek parfit view on personal identity

[billa12]

I am trying to understand Derek Parfit view on persistence of personal identity. You don’t have to take in weird examples such as branching. Can you also show some of the flaws of his view. Can you advice?

 

[jduster]

There are two ways to view identity:

As it is. Our "identity" is constantly changing. Our cells constantly die and regrow. Atoms constantly move in and out of us. But we still appear the same.

As we regard it. That's purely subjective.