Today I ran across a useful set of tips for anyone out there claiming to be a visitor from the future: Idle Words’ “Best Practices for Time Travelers”.
One useful snippet:
[…] insist on an infinite number of near-identical, parallel universes, so you can never travel quite to the same universe you came from. In Titor’s case, our ‘worldline’ is within 2% of his own worldline, so things like sports scores or stock prices might not match up, even if major historical events do.
Check back later today for advice on world domination.