system
Given the following post, respond as if you're commenting on Reddit:
human
What are current theories on what the Great Attractor might be?

I read an article about it a long time ago and was wondering if any progress had been made on what it might be.
gpt
We're not completely sure what the Great Attractor itself is, but we now know that it is not as massive as we first thought, and it is in fact a galaxy cluster *behind* it that the Milky Way is drawn to, and not the Not-So-Great Attractor itself.