When I was a child it seemed like an eternity to get from one Christmas to another, nowadays each year just flies past. It seems no time ago that it was spring.
I still can't get my head round the concept of the halfway point between the end of WWII and now being as late as 1984, either.
The difference between 1945 and 1984 seems a positive ocean, yet 1984 sometimes doesn't seem that long ago.
I have the same experience, and I agree with
@3141 - I'm sure it's to do with time before you were born feeling more remote.
Coincidentally, 1984 was when I took my A level in history, with the syllabus being World Affairs since 1945. Even though that was a period of less than 40 years, it felt to me at the time like I was learning stuff from so long ago as to be a different World.
The time that has passed since I took that exam is now exactly as long as the time covered by the exam, yet to me, 1984 still feels fresh and recent. If I try to look at things rationally, I can see that maybe both UK society and the World has changed just as much since 1984 as it had between 1945 and 1984 - but it certainly doesn't
feel like that. Seems strange to think that, if that history syllabus still exists (I've no idea whether it does), it would today cover twice as much history.
EDIT: What feels even more strange is: 1984 feels fresh and recent to me, but if you go back in time just 10 times as far, you're practically in Shakespearean times, and even pre-civil-war!