It’s actually quite hard to do with intrusive memories. If you run across a smell that reminds you of, say, a memory closely related to that smell… are you able to block that memory out before it starts? And how soon are you able to forget it?
I often think of PTSD as being like trying not to think about a pink elephant when someone says, “Don’t think about pink elephants!”
I suppose this is the Stay-Puft Marshallow Man Principle.
Nevertheless, I tried rather hard this afternoon.
It did not work very well, actually, but it was fun.