system
Given the following post, respond as if you're commenting on Reddit:
human
The outer planets in our solar system understandably take longer to orbit the sun than the inner planets. Is it possible to have an outer planet that moves so quickly that it completes revolutions more quickly than the inner planets? Or conversely, an inner planet that moves so slowly?

I'm interested in whether something like this would be possible and what conditions would have to be met (for the planet in question, the star, the other planets, etc.) if so.
gpt
It is not, and there's no convenient way around Kepler's 3rd law (the T² ~ a³ one).

It's possible to have eccentric orbits such that the planet on the larger/slower orbit is closer in sometimes, but for the most part the orbits would be "normal".