What Is Spacetime Really Made Of? (Adam Becker)

Spacetime may emerge from a more fundamental reality.

A growing number of physicists, working in different areas of the discipline with different approaches, are increasingly converging on a profound idea: space—and perhaps even time—is not fundamental. Instead space and time may be emergent: they could arise from the structure and behavior of more basic components of nature.

At the deepest level of reality, questions like “Where?” and “When?” simply may not have answers at all. more...