[latchkey]

> Your personality can completely change in 10 years.

This was kind of a revelation to me a long time ago. When you're 20, you're a totally different person than when you're 10. When you're 30, different than 20. Just like the linked article suggests, you really tend to underestimate how much you're going to change in the future. At 10, you can't really consider how you're going to be when you're 20.

[Retric]

The reverse is also true, people have a lot in common with who they were 10 years ago. It’s common for people to like many of the same songs at 60 that they did at 16.

I may be more skilled, better informed, and care a great deal about people who didn’t exist back then, but I think my basic personality is shockingly close to 10 year old me.

[badpun]

Basic personality traits (like Big 4) stay roughly the same. What (hopefully)happens is personality development and maturation.