From the HN Guidelines [0]:
> Comments should get more thoughtful and substantive, not less, as a topic gets more divisive.
Ever since I first encountered G, I always wondered, "is gravity really constant? Is it emergent from 'the universe', or from matter?"
This eventually led to thinking about, "well maybe gravity has more or different properties than G".
As evidenced by the link to a typical comment from me above, these thoughts are always dismissed out of hand. For good reason. But now that a "legit" particle physicist is raising these questions, I hope to see some movement.
Based on all current observations, G is constant.
Did you read the article, however? What she's mulling over is the idea of different gravitational fields, and reconciling that with quantum theory along with "classic" Newtonian and Einsteinian physics.