Quantum gravity is all the rage in physics these days. There are books about it but none say what quantum gravity is. And none report real progress. We should be upset about this. Really! Quantum gravity tries to reconcile our two immensely successful—but mutually inconsistent—theories about the world: quantum theory and relativity. A quantum theory […]

# Tag Archives: continuity

# How does Planck-scale physics work?

Planck-scale physics is more than a hundred years old. Physics is starting to take it seriously. This is great because we can hope for exciting new science and technology to drive a new economy. Planck scale is the incredibly tiny scale at which physics actually happens. It is the scale at which space no longer […]

# Plain talk about quantum theory: It has no place for space and that’s a problem.

Quantum physics is in trouble. It needs a new strategy. Physics is mostly based around quantum theory. When physics gets in trouble it affects everyone. Physics is the fountain from which our economy springs. Quantum theory seems so esoteric many think they cannot go there. Yet at heart the problem and the opportunity to fix […]

# The universe has an arithmetic of its own that answers a deep question about the nature of math.

Here’s a burning question behind the facade of math: Is math a property of the universe that we discover (a view philosophy calls realism); or is math an invention of our minds (fictionalism)? If “our” math is a property of the universe then we may get it right or wrong but we can’t change it; […]

# What is Planck-scale physics and why does it matter?

The Planck-scale physics story begins long ago. In 1901 German physicist Max Planck publishes an explanation for strange properties of radiant heat. He says its energy is quantized. In other words, it radiates in distinct little bits. He sees this as a mathematical convenience and doesn’t really believe it. His math requires a constant he […]

# Thinking of moving: Solving this key puzzle of philosophy—and the central problem of physics

We see things move. We tend to take motion for granted. But when we think about it closely, the notion of motion becomes a deep philosophical problem: How can something move? In his seminal 1949 work on the origins of modern science, British historian Herbert Butterfield said, ‘Of all the intellectual problems which the human […]

# A new look at the tiny photon answers some vexing questions and offers a big opportunity.

Albert Einstein introduced the photon to the world more than 100 years ago. Though physicists doubted—even ridiculed—his idea for years, it set off a scientific revolution. The photon now underpins foundations of the world economy. Yet to this day it is a mystery. Even when we know a photon has gone from A to B […]

# Physics has long been confused about the concept of ‘now’. New insights show that it is fundamental.

A sense of Now is the universal human experience. Yet modern physics cannot handle the concept of the present moment. Indeed relativity—our great theory of space and time—insisted on embedding it within a time dimension and then crossbreeding this dimension with three space dimensions to make spacetime. This was a blunder. It blocks progress. Physics […]

# This universal principle created all space and matter from the beginning of time. Today, it’s still creating strange phenomena around the world.

Emergence is the source of all the laws of physics. Strange spots called fairy circles illustrate the way emergence brings new fundamental properties into the world, including space and matter. There are millions of them. Bare patches in grasslands, remarkably well-defined, regular in shape and spacing, and ordered in a roughly-hexagonal array over long distances, […]