Memory can be fatally flawed. Some years ago the BBC asked for memories of those who went to the Festival of Britain when it first opened. I knew I took my girlfriend on the second day, but she kept her diary and as husband and wife we later compared events....
I am on a nostalgia trip tonight having had our meal in the same students' club where in post-war hungry Britain I ate whale steaks for lunch. The whole concept of that now politically unacceptable meal reminds me of the passage of time just as the absence of trams past...