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Let me do some research on the definition of synchronicity for you: The coincidental occurrence of events and especially psychic events (as similar thoughts in widely separated persons or a mental image of an unexpected event before it happens) that seem related but are not explained by conventional mechanisms of causality
Now be enlightened!
You are welcome!

I know what the word means, it's just that your story didn't include any of it's elements. Not that it matters to me, just wanted to see if I was missing something.

In short, I said to someone that it's been all downhill since the 90 and the next day I watch this video in which the same is said. The element of similar thought independently occurring in separated persons at roughly the same time. Maybe you missed the part at the beginning of the vid.