Will you do the fandango?

I can't believe it's been 40 years!
How many time do I hear that nowadays?  One of my colleagues - a mere 21 years young has his own version, something like 'I can just remember when...' when recounting something that I would call 'recent'.
"Just remember"? He should be able to remember his whole life in minute detail.  He's got loads of memory space left, although he is a bit of a film fan so some will be taken up with fictitious film facts of no use to anyone.
Anyway back to the 40 year thing.  It's just that Bohemian Rhapsody was the Christmas number 1 40 years ago in 1975 and I remember it like it was yesterday.  Well, not yesterday, but what we take in as a 'major event' stays with us for much longer than the ordinary run-of-the-mill non-descript memories and gives an impression of a recent event.  Quite clever the way our brain handles memory, not unlike how some computer memory works, with the important data staying close by in case it's needed and can be grabbed quickly without resorting to searching e,g, a hard disk.  If Bohemian Rhapsody was data, I would cache it in as many places as possible.
Mind you, it's not as if the song had a huge impact on me, it was just so different than the bland mediocre pop music at the time accompanied by a cool video that would probably be seen as quite amateurish nowadays.  It was also at No 1 for what seemed weeks and weeks, although I'm not sure how long (and can't be bothered to look it up).