How Many Holes Does a Human Have?

Vsauce · 16.2M views · 2020-02-17 · 21:27

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Overview

Vsauce asks how many holes a human has and uses topology to show the answer depends on what counts as a hole, with animations and expert input.

On Hacker News

Pointed to as a fun, light introduction to topology and to answer the human-holes question.

Recommended by 3 HN people across 3 months · HN mentions 2021–2024

Topics

Pure mathematics Recreational & visual math

What people said

davkan · 2024-02 · Recommendation
Vsauce has an interesting video regarding topology[0]. Probably a bit rudimentary for anyone already familiar with the math, but still entertaining in the typical vsauce way. [0] [VIDEO]
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dsamarin · 2021-05 · Recommendation
It depends on the minimum size of the what you will consider a hole. Check out the video from VSauce on YouTube about how many holes a human has. [VIDEO]
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thearrow · 2021-01 · Recommendation
If you'd like a fun, light, video introduction to this topic, this Vsauce video is worth a watch: [VIDEO]
Read the original HN comment ↗

Sources

Video by Vsauce, played through YouTube.

HN Library · Source license

Data and selection notes

HN summaries and labels may contain AI errors. HN dates refer to discussions, not video publication.

HN Library: HackerTube export (2026-10-31) and open-index/hacker-news. Upstream summaries and classifications may contain AI errors.

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Selection checks

SaaS & AI candidates: Topic keywords do not match
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