Mindblowing Facts

A while ago I stumbled on this Reddit thread where people were listing some facts they thought were mindblowing. Here it is and here are some of my favourites from the list:

• There are more atoms in a single glass of water, than glasses of water in all the oceans of the Earth.
• Norman Borlaug saved 1 billion lives. (A bit debatable but largely true)
• [Planck's length : the width of a human hair] is as [the width of a human hair : the diameter of the observable universe] (Actually off by a factor of 1000 so but that’s small potatoes so still impressive. Real one would be Plank’s length : human hair is as human fist: observable universe)
• Cleopatra lived closer in time to the first Moon landing than to the building of the Great Pyramid. Here’s a graphic!
• “[N]o matter who I fuck, I will fuck a distant relative”, and of course
• Consciousness arises from the arrangement of atoms in our heads.

And here are a few I like not in the thread:

• At any time, an estimated 10 million people are traveling across China by train.
• Oldie but goodie: 90% of the cells in your body aren’t human.
• Colour is only really in your head, from an objective perspective objects just emid light at different frequencies but are entirely colourless.
• You can program an entire computer using just one operation: subtract and branch if negative.
• You can create a shape in Conway’s Game of Life that is a programmable computer, executing code from some cells, making output to other cells.
• The war that seems to have caused the 2nd most casualties in history (with 30M-60M deaths) was…the Mongol invasion of asia. And the highest estimate of 60M is just 12M short of the highest estimate for WWII! And this for a world with only about 350M people total which probably makes it the bloodiest war in history.

What are your mindblowing facts?