Our mothers movement caused a swaying/rocking motion, and that's why rocking helps relieve stress even in adults. So my point is, if our bodies and brains remember this motion from before we were born, why isn't it plausible that we could still remember our twins? It definitely isn't a memory like a past vacation would be, but definitely a memory nonetheless.It in indeed so obvious that the Freudians are going to have to stop saying that "memory starts at three years old!"
When do you think memory begins? Is it possible to remember a twin who does in the first trimester?