7videosCGP Grey
7.05M subscribers on YouTube
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7videos
London Swallowed a City but Couldn't Digest It.
8.58M viewsWhy the City of London is a separate, ancient corporation inside the metropolis of London, with its own government, police, privileges and unusual elections.
10:29America's Worst-Designed Backup Plan
14.3M viewsHow the US presidential line of succession works and its odd edge cases.
8:30Highway Numbers Aren’t Names. They’re Coordinates.
13.8M viewsHow the US Interstate numbering system encodes direction and location.
Most Cities Got More Democratic. This One Didn't.
6.15M viewsHow voting works in the City of London, where businesses as well as residents elect the government, and how that system survived centuries of reform.
The UK Is a Country Made of Countries
25M viewsHow the UK, Great Britain, England and the Crown dependencies fit together.
12:08Why Some Diseases Only Traveled One Direction
13.9M viewsWhy Old World diseases devastated the Americas but few diseases travelled the other way: domestication, density and zoonoses.
A Third of America Belongs to America
18.7M viewsWhy the US federal government owns about a third of the country's land, how it was acquired, and who manages it.
Why Your Vote Doesn't Count
7.89M viewsHow first-past-the-post voting tends toward two parties, and its other flaws.
The Voting System That Gives You Two Votes
3.06M viewsCGP Grey explains Mixed-Member Proportional representation: two votes, how list seats top up local results, and the overhang problem.
The Netherlands Is Not 'Holland.' It Never Was.
13.9M viewsWhy 'Holland' isn't the Netherlands, and how the country's geography and history fit together.
The US Has More Tribes Than the World Has Countries
7.31M viewsCGP Grey explains the terms 'Indian' and 'Native American', the legal standing of tribes and why the US has hundreds of sovereign nations.
The Voting System That Should Replace Every Election
4.66M viewsHow the alternative vote (instant-runoff) works, step by step.
Traffic Has a Perfect Solution. Humans Are the Problem.
44.6M viewsWhy traffic jams form and how self-driving cars or better driving could reduce them.
Why Teleportation Would Kill You
7.28M viewsWould a Star Trek transporter kill you? CGP Grey uses the thought experiment to introduce problems of personal identity and continuity.
Why Your Politicians Don't Fear Your Vote
4.94M viewsGerrymandering: how drawing district lines shapes election outcomes.
You Can Win the Presidency With 22% of the Vote
8.27M viewsHow the US Electoral College can allow a win with a small share of the popular vote.
5:205 Things That Make Presidential Primaries Ridiculous
A 5-minute video from CGP Grey: “5 Things That Make Presidential Primaries Ridiculous”.
1:13:43A Year Inside Cold War History
A 74-minute video from CGP Grey: “A Year Inside Cold War History”.
A4 Paper Is Too Perfect
10.5M viewsExplains the √2 aspect ratio behind A-series paper and why it lets sheets halve perfectly.
17:39Abandoned Nuclear Weapon Facility
A 18-minute video from CGP Grey: “Abandoned Nuclear Weapon Facility”.
4:13Almost Every European Is Related to England's First King
A 4-minute video from CGP Grey: “Almost Every European Is Related to England's First King”.
7:36America Forgot It's Allowed to Stop Making Coins
3.45M viewsA 8-minute video from CGP Grey: “America Forgot It's Allowed to Stop Making Coins”.
America Keeps Rejecting an ID Card It Already Has
13.5M viewsWhy the US has no national ID card, how the Social Security number became a de facto one, and the problems that causes.
4:53Are Hong Kong & Macau Countries?
A 5-minute video from CGP Grey: “Are Hong Kong & Macau Countries?”.
2:30Canada Killed the Penny and Nothing Broke
A 2-minute video from CGP Grey: “Canada Killed the Penny and Nothing Broke”.
2:06Daddy Longlegs: Three Different Animals
A 2-minute video from CGP Grey: “Daddy Longlegs: Three Different Animals”.
3:15Earth's Closest Neighbor Is Everyone Else's Too
A 3-minute video from CGP Grey: “Mercury Is the Closest Planet to Earth Most of the Time”.
3:34Even the Tiebreaker Can Tie
A 4-minute video from CGP Grey: “A Tied Election Is Decided One Vote per State”.
11:07How New Jersey Lost Staten Island to New York
A 11-minute video from CGP Grey: “How New Jersey Lost Staten Island to New York”.
3:50Is Australia a Continent or the World's Biggest Island?
A 4-minute video from CGP Grey: “Is Australia a Continent or the World's Biggest Island?”.
3:34Las Vegas Created a Fake City to Avoid Taxes
A 4-minute video from CGP Grey: “Las Vegas Created a Fake City to Avoid Taxes”.
3:59Leap Years Don't Happen Every 4 Years
A 4-minute video from CGP Grey: “Leap Years Don't Happen Every 4 Years”.
2:20Not the Confederate Flag
A 2-minute video from CGP Grey: “Not the Confederate Flag”.
12:02Only One Supreme Court Justice Has Ever Been Impeached
A 12-minute video from CGP Grey: “Only One Supreme Court Justice Has Ever Been Impeached”.
4:02Only Two Countries Can Still Claim Antarctica
A 4-minute video from CGP Grey: “Only Two Countries Can Still Claim Antarctica”.
Pentagons Are Terrible at One Thing
22.3M viewsExplains why regular pentagons can't tile the plane and the history of finding the 15 convex pentagon tilings.