Dear Dr. B: What is emergent gravity?

�Hello Sabine, I've seen a couple of articles lately on emergent gravity. I'm not a scientist so I would love to read one of your easy-to-understand blog entries on the subject.

Regards,

Michael Tucker
Wichita, KS�

Dear Michael,

Emergent gravity has been in the news lately because of a new paper by Erik Verlinde. I�ll tell you some more about that paper in an upcoming post, but answering