I think the general rule is that we (or at least I) tend to have a default assumption that others think like us at least on a fundamental level, and that they have fundamentally similar personalities. If we meet up with someone who has a different sort of mind / personality, we tend not to notice it unless it's really staring us in the face.
I may be unusual, but I'm exactly the reverse of this. My default assumption is that other people are very different from me. When someone thinks and feels like me, I'm always surprised, and it takes some time to convince me that this is stable. I suspect I may be kind of hyper-aware to individual differences, since I've paid a lot of attention to this in recent time
following on from:
http://lesswrong.com/lw/dr/generalizing_from_one_example/
I am quite sure in my experience that at some point between the ages of 10-15 I concluded that; "no the rest of the world does not think like me, I think in an unusual way".
This idea disagrees with the typical mind fallacy (where people outwardly generalise to think everyone else has similar minds to their own).
I suspect I started with a typical mind model of the world but at some point it broke badly enough that I re-modelled on "I just think differently to most others".
I wanted to start a new discussion; rather than continuing on from one in 2009;
Where do your experiences lie in relation to typical minds?