Why time travel is a bad idea

Apart from the usual temporal paradox issues. It should be remembered that our earth spins at ~1,600 km/hr while it travels around our sun at ~107,000 km/hr. If this is not fast enough, our whole solar system travels around our galaxy (The Milkyway) at ~828,000 km/hr while the Milkyway itself moves through the universe at an amazing 2.1 million km/hr! With all this highspeed spinning and twirling, moving 1 minute into the future or past will mean a trip into the vacuum of space or even inside a star, planet or asteroid.