what I have learned, *spoilers alert*:

1. Littering of the time continuum is perfectly acceptable practice.
   The eponymous Time Traveller sent a bunch of miniature ‘machine’ models in the past and future as trials for his experiment, so somewhere in 1587 AD there must exist a miniature model of a Time Machine on somebody’s coffee table, and in all possibility one could just randomly turn up on your desk at any given moment.
2. Humanity is fucked.
   If we don’t blow each other up, freeze to death or ultimately succumb to some super amazing virus, we will evidently split into two races, and feast upon each other in the dingy darkness of the underworld.
3. The Rolling Stones are still together and perform a variety of their hits from a monolith of a red tongue approximately 2 miles south west of where Brixton used to be. Justin Bieber usually opens for them.
4. No matter how incredibly detailed your story is, no-one will believe you.
   You can travel through 8 million years worth of future history, and come back looking like you wrestled a family of bears, produce white flowers as a memento from your journey and the media and scientific community still won’t believe you.
5. In the future the world is ruled by giant inquisitive crabs. Who die out and are replaced by football sized inquisitive… gelatinous blogs. With tentacles.

I made one of those up. Try to guess which one.