agree, would make more sense a comet asking Neptune for directions, and then colliding with Jupiter with Pac-Man face

It’s way more complicated than that:

https://www.youtube.com/watch?v=1zu41rrc_Ng

The way the complicated orbital mechanics work, there is a “gate” which is the only place where asteroids/comets/whatever can cross Jupiter’s orbit. This doesn’t usually result in them hitting Jupiter, but it does limit their options for hitting Earth.

Been a while since I watched the video, so I don’t remember all the details, but that should be the basic gist.