How to Predict a Mill Second in Future?

In a chaotic system, i could be really wrong, yes. And that's a big deal. If you're doing something like planning a trip to the stars, or sending your probe to jupiter, or whatever, you definitely want to get that right? Ye? You don't want to be off by a few light years. Even if you're just flying through the solar system, if you get it wrong, you could end up crashing into the sun,. Or getting tossed out of the solar in the wrong direction. Imagine firing a gun from l a to new york and trying to hit a tinyitl tiny target. But i guess, you know, we are pretty good these