system
Given the following post, respond as if you're commenting on Reddit:
human
Is the Oortcloud (est 0.03 to 3.2 ly) shared with other stars, ex Alpha Centauri (4,36ly) ?

I pictured the oortcloud as a far flung region of stuff loosely affected by the sun. But since it seems to stretch so far out that parts actually are closer to other stars wouldn't that make it shared? Or does it refer to the region of interstellar comets that are affected by our sun? But Doesn't the Alpha Centauri system have a higher mass than our sun shouldn't it be more affected then?

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Or doesn't this have to do more with he fact that stars aren't static and are moving relative to each other so that the Oort cloud are "our" comets and they have theirs but since the distances are so huge and we aren't necessarily very close for too long it doesn't matter too much?
gpt
By definition, the outer limit of the Oort cloud is defined by where the gravity of our solar system predominates. It's not a sphere. The competing gravity sources are nearby stars (such as Alpha Centauri), and the whole Milky Way. But the mass of Alpha C is only 0.123 solar masses, so even in that direction you have to go out to 3.23 ly before Alpha C's gravity is stronger.

The question of whether an object is part of the Oort cloud depends on it's distance and dynamics. If it's going fast enough, a close-in object will escape, so it's not part of the cloud.