So much interesting stuff.

I've been reading through the sequences, and one peeked my desire to post, so I created an account. There are actually many things being discussed here that interest me. I'm not sure I'm a rationalist though, as I believe there are some lies that should be maintained rather than destroyed.

I'm interested in personal identity, not "Quantum Mechanics and Personal Identity", but where does "me" end.
The sound bite is "Am I my hat?" or to be more verbose, is my hat an extension of myself, and thus a part of me. Some would say "of course not". If you're thinking that, then imagine I started beating you with my hat.
Would you ask my hat to stop, or would you ask me?
Where do we stop being "us" and start being "them." Is our hair part of us? What about when it's cut? What if we weave it into a hat, and does it matter if we cut it first? Let me be clear, I don't really care how a particular definition of "me" would resolve hair clippings, I'm interested in what definitions people actually use.