They grow fast
Every time I go back to my hometown I'm amazed at how quickly my old friends' kids have grown since the last time!
Christchurch must be a little surreal at the moment. That's a big area marked for bulldozing! I imagine the same thing happening in Brisbane and it's hard to get my head round it. We had the floods, but this far after that there's not much trace left (aside from the suburbs that were hit the worst I guess).
After the tsunami in Japan I was talking to some of my friends who have lived over there and they were in similar shock seeing places they used to live in and walk through on the way to work devastated. Until you see it happen first hand I guess it's not real, just pictures on a tv screen.