
Fiery Holes in Space and Time
Firewalls” of particles may border black holes, confounding both general relativity and quantum mechanics
Joseph Polchinskiwas a professor of physics at the University of California, Santa Barbara, and a permanent member of the Kavli Institute for Theoretical Physics there. His work was crucial to the fields of string theory and quantum gravity and, of course, the firewall paradox, which he devised with contributors. He passed away in 2018.

Fiery Holes in Space and Time
Firewalls” of particles may border black holes, confounding both general relativity and quantum mechanics

Black Hole "Firewalls" Could Change Physics Forever
“Firewalls” of particles may border black holes, confounding both general relativity and quantum mechanics

The String Theory Landscape
The theory of strings predicts that the universe might occupy one random "valley" out of a virtually infinite selection of valleys in a vast landscape of possibilities