system
Given the following post, respond as if you're commenting on Reddit:
human
Is there a relationship between the size of a possible meteor that is on an intercept trajectory with Earth and the probability that we haven't found it yet?

What are the chances that a meteor 5-10x larger than the one that hit Russia several years ago hits Earth within the next 10 years?  Is there a way to compute this?
gpt
There is *somewhat* of a relationship, only because the smaller an asteroid is, the less likely we are to have noticed it yet. (That doesn't mean we know about all the big ones. There are surely some huge ones we haven't spotted yet.)

But we've cataloged and charted only a small portion of asteroids, even only a small portion of the ones that could intersect Earth.

As for how to compute the likelihood of impacts of a given size, I'd say the best way to do that is to look at the historical record. Look how often in the past Earth has been hit by rocks that size.