Updated: 2024-12-31 15:15:00
Cosmologists have long wondered whether dark energy and the accelerating expansion of the universe is an illusion. Now the evidence backing this idea is mounting.
Updated: 2024-12-28 22:26:09
Recently Curt Jaimungal offered to host a debate over string theory between me and a willing string theorist. Joe Conlon took him up on the offer and our discussion is now available. I think it turned out quite well, and … Continue reading →
Updated: 2024-12-27 18:00:00
Learn how the existence of dark energy is being challenged due to new evidence that the expanding universe is actually "lumpy".
Updated: 2024-12-13 17:25:57
This past summer Nordita ran a program on quantum gravity, featuring lectures and panel discussions on various approaches to the subject. Lecture notes from the six mini-courses are now available here. There’s also a long, 39 author document called Visions … Continue reading →
Updated: 2024-12-08 00:17:51
It’s been taking me forever to sort out and write down the details of implications of the proposal described here. While waiting for that to be done, I thought it might be a good idea to write up one piece … Continue reading →
