Hogan’s noise

A cosmologist suggests a novel way to uncover the nature of spacetime on the smallest scales

Oh, the noise!
Oh, the noise! Noise! Noise! Noise!
That’s the one thing he hated!
The NOISE! NOISE! NOISE! NOISE!
— Dr. Seuss, How the Grinch Stole Christmas

HIS NOISE Cosmologist Craig Hogan is proposing that the universe is a hologram made of tiny grains, or pixels, of spacetime.