SciShow

Can We Describe The Whole Universe With A Single Number?

2026 • E77    May 19, 2026    14m
How many numbers do we need to describe reality? If you're a particle physicist, it currently hovers around 30, describing things like the mass of the electron or the strength of gravity. But some physicists think you can go even lower: to just three...or even more radically, ZERO. What are these numbers, and why are the rest so unimportant?

Hosted by: Madelyn Leembruggen (she/her)

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