User blog comment:Adventuretimegurl123/My Theory of the Mushroom War and why it happened/@comment-13187859-20130725134829

Interesting. That sounds like a plausible idea. And a lot of evidence fits.

But this would also mean that, if the war really did begin in the 80's or 90's, the current events of Adventure Time are happening in the year 2990 or so. So, they'd be nearing the thirty-first century... Cool.