.. thats very interesting that memory is attached to moving. Is that really true??? ....my short term memory is rubbish.
I think that if you have been through some harsh times it makes you turn inwards more then most others. Perhaps an escape from what is going on in your surroundings and finding a happier place.
There are some memories that I have that I sincerly wish I could erase. Sadly memory doesnt work that way and the only way to deal with them is to find a positive angle to them.
Mark I think you more then most have lived to the max and so your memories are going to be plentiful.