## Subtitles section Play video

• [MUSIC]

• Consider a cubic cow, living on a cubic hillside, under cubic clouds, on a cube

• world. Could planet Minecraft actually exist?

• [MUSIC]

• With over 70 million copies sold and more than 100,000,000 players, the world of Minecraft

• is huge. But it’s not infinite.

• Thanks to some quirks of your computer’s mathematical code, the Minecraft Overworld

• is limited to a width of 68.7 billion meters, for a total area of 4.7 quadrillion

• square kilometers or about 9 million times the surface area

• of Earth.

• Of course, that’s just one face. All six sides would have an area of over 28 quadrillion

• square kilometers, more than 4,000 times the surface area of the sun.

• Near the World Border, about 30,000,000 meters from the center of any Minecraft landscape,

• things start to get very weird. Living stuff just sort of disappears.

• On a cubic planet, this makes sense. Gravity would only be oriented straight up and down

• at the center of each face. The closer we get to any horizon, the more of the planet’s

• mass that would be under and behind us, and although that would make gravity slightly

• weaker towards the edge, we’d get the odd sensation that we were walking uphill.

• That angled gravity would end up drawing air and water away from the edges. Viewing our

• cubic planet from orbit, we’d see six bubble atmospheres, one in the center of each face.

• On the surface, we’d only be able to travel so far before we simply walked right out into

• space.

• [MUSIC]

• Ah, there’s nothing quite as beautiful as a cubic sunset. Unlike on Earth, the Overworld’s

• sun and moon are always oriented directly opposite of each other. One explanation is

• that the Overmoon is actually a neighboring cubic planet, locked in its own synchronous

• orbit with the Cubesun but that doesn’t explain the stars.

• In Earth’s night sky, the relative positions of the stars and moon change each night as

• we travel around the sun. But in Minecraft, the night sky always looks the same. This

• can only mean the Overworld is at the center of its universe, orbited by a fixed sun, moon,

• and stars. Clearly, Copernicus would not be a ‘crafter.

• Since the sun and moon pass directly overhead each day, we can conclude that the polar axis

• of our cubic planet passes directly through the center of two of the six faces. These

• polar faces would only ever see dim twilight, and their bubble biomes are most likely frozen

• wastelands, devoid of complex life. But the other illuminated faces of our world could

• be home to three unique Overworlds of their own.

• In 1884 a Swiss astronomer claimed to have discovered a cube world just like this, orbiting

• beyond Neptune. Spoiler: he was wrong. Very, very wrong.

• With my sincerest apologies to Superman, Bizarro and Minecraft players everywhere, the laws

• of physics say cubic planets and cubic ducks are sadly impossible.

• Having enough gravity to rearrange into a sphere is one of the criteria for being a

• planet. Gravity wants to pull an object’s mass into the smallest volume possible, and

• to distribute that gravity as evenly as possible among that mass. The best shape for that? A

• sphere.

• If a gas planet like Jupiter, made mostly of hydrogen, were just 80 times more massive

• than it is, it wouldn’t be a planet anymore. Its gravity and internal pressure would be

• so high that elements like hydrogen would begin to fuse to helium at its core it

• would turn into a star.

• For a rocky planet to turn into a star, to fuse heavier elements like silicon, it would

• have to be about 8 to 11 times more massive than our sun.

• Our cube world’s volume would be 3.2 x 10^23 cubic kilometers, and at a density similar

• to Earth’s, its hexahedral mass would be nearly 900,000 times that of our sun. The

• only things that massive in our universe are - supermassive - black holes.

• These large black holes are likely found at the center of most galaxies, surrounded by

• incredible amounts of heat and radiation. Like all black holes, they contain so much

• mass, so much gravity, that even light can’t escape.

• So, a cubic Overworld might be impossible

• in this universe, but if Minecraft has taught us anything, it’s a universe of its own.

• And there, who knows what might be possible? Stay curious.

• This episode was sponsoredby dropbox

• No matter what your create, whether you write it, draw it, mix it, or test it,

• Dropbox makes it simple to work the way you want.

• That’s why over 400 million people around the world use Dropbox to work together

• on any file, with anyone, from anywhere. Dropbox. All Yours.

[MUSIC]

Subtitles and vocabulary

Click the word to look it up Click the word to find further inforamtion about it

# Could Planet Minecraft Actually Exist?

• 288 25
Amy.Lin posted on 2017/04/10
Video vocabulary