This is what those musical people tell me - the Beatles changed music... but if you're not the sort of person who understands how keys change or what that does, then it becomes a more abstract concept.

I don't discuss age particularly often but because it's you and you've been a long time reader, contributor and logic nemesis I can let you know that John Lennon and I never shared time on this planet - though that assertion is debateable depending on when you think life begins. ;o)