So, what is your earliest memory? I don't know, but as second best I can recall the first time I lay in bed and tried to work that out. Was it a time of sitting in the pram and being taken to buy a replacement foot support strap for it, as I was apparently in the habit of breaking them? Was it me sitting in the afternoon sun, eating salad, and being photographed? The picture's existence might be evidence my mind just imagined my point of view of the experience, and created my current sense of it for me. The other two options I remember considering, I have since forgotten.