Well the examples I gave rise above their ephemerality due to the circumstances that make them memorable. I can remember the details of the story around them — the way the prize winners reacted in each story — in such a way as to contrast them.

The way my memory works (especially as an amateur photographer) I would thus normally have a very good chance of remembering some key details of the images; some fascinating element of each would connect with the rest of the memory.

But it does not happen. Whereas I sometimes remember photos with clarity while forgetting where I even saw them.