This Toothpick Contains Everything Ever Said (Infinity Part 3)

This Toothpick Contains Everything Ever Said (Infinity Part 3)

From The Rest Is Science by Goalhanger

April 6, 2026 · 51 min · Season 1 · Episode 40

About this episode

The episode explores the complexities of infinity and the differences between various types of infinite sets.

What happens when you finally reach the end of forever? And what exactly is the difference between Omega and Aleph-null? Professor Hannah Fry and Michael Stevens (VSauce) return for the final (possibly not) chapter of our infinity series, unpicking the frankly absurd mechanics of multiple infinities. They reveal how mathematicians don't just measure the endless void, but actively organise it, exploring the bizarre gap between the sheer size of a boundless set of numbers and its actual order. Following Georg Cantor's mathematical meltdown, this episode tackles the mind bending rules of the infinite, why Aleph-null is just the baby of the infinite family, and how jumping to Omega requires a complete rewiring of human logic. ------------------- For more information about Cancer Research UK, their research, breakthroughs and how you can support them, visit ⁠⁠https://cancerresearchuk.org/restisscience⁠⁠ Cancer Research UK is a registered charity in England and Wales (1089464), Scotland (SC041666), the Isle of Man (1103) and Jersey (247). A company limited by guarantee. Registered company in England and Wales (4325234) and the Isle of Man (5713F). Registered address: 2 Redman Place…

People in this episode

Guests: Hannah Fry, Michael Stevens

Topics covered

  • infinity
  • mathematics
  • Aleph-null
  • Omega
  • Georg Cantor
  • multiple infinities

Keywords

  • infinity
  • Aleph-null
  • Omega
  • mathematics
  • Georg Cantor
  • multiple infinities
  • endless void

Mentioned in this episode

Organizations: Cancer Research UK, Goalhanger

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