Physics
Quantum Mechanics Is Putting Human Identity on Trial
If our particles have no identity, how can we?
Will Quantum Mechanics Swallow Relativity?
The contest between gravity and quantum physics takes a new turn.
The Case for Fewer Dimensions
At small scales, gravity seems to blow up—but not if space becomes 1-D.
How Big Can Schrödinger’s Kittens Get?
Scientists are slowly scaling up quantum effects from atomic to human size.
The Trouble with Theories of Everything
There is no known physics theory that is true at every scale—there may never be.
