I don't think they've explicitly said an age, but it happened in 1985 and I think they're playing both Peter and Olivia at a current age of 32 (although I could be making that up). Of course that totally doesn't jive with the kids we just saw, but it does come closer to the Cortexiphan trials starting when Olivia was 3.

Oh, we need a screen cap of Peter's headstone! That'll tell us.

Fringe wiki doesn't seem to know.

[link]

I wasn't making it up. I suspect they just couldn't tell the story they wanted to tell with 6-7 yr old actors.

Has he started to remember? Would new events bring those memories back?

Those are interesting questions, that hopefully they will look into. Peter doesn't even remember being sick, right? And he was sick in both universes, so I'm guessing he doesn't remember anything in his life before a certain point.

Oh, and given the promises that Mrs. Walter made to Peter - what drove her to suicide? Was the pressure of pretending that she still had her son when really she was mourning his loss too much for her at the end?

I'm hoping it had more to do with the drinking we saw her begin at the end of the episode than the deliberate suicide that Peter seemed to think it was.

I have met people who have dim recollections of their childhood, as if puberty was a kink in the hose of their life.

I have met people who have dim recollections of their childhood, as if puberty was a kink in the hose of their life.

raises hand

See?

I remember everything from my childhood after say 4 or 5.

I have been told that my recall of events prior to Kindergarten is kinda freakish.

I remember climbing a very tall slide at the school across the street from our house at the age of three or four and suddenly being on the ground, and being carried home by my 8 or 9 year old sister.

The memory kind of ends at the house for that incident, tho.

I don't remember anything before age 9, and even that is hazy and sporadic until 11.