We discussed how 2D beings would view photos of our world last time. Today, a mysterious person claiming to live in 4D space has connected with our computer. They say they have 3D retinas that can dir

Many literary works have mentioned fictional 2D flat worlds. We'll experience the first-person perspective of flat beings with computers. This is a pre-excercise for the vision of 4D beings.

While scouting at Y=120 in the Nether, I found a mature tunnel network and ran 100k blocks before returning to spawn. I Joined a Chinese group, helped build an llama dupe base, but it was griefed by F

2B2T (2b2t.org) is the oldest anarchy server in Minecraft, famous for being unmoderated and chaotic. There are many clickbait titles online that make it sound terrifying: “Veteran player survival rate

All knots in 3D can be easily untangled in 4D. There are no knots in 4D. End of article. Of course I wouldn't end this article like that. 2D surfaces (2D ropes?) can form knots!

The previous article introduced various types of vehicles in the four-dimensional world, all of which can freely drive and steer on three-dimensional ground surfaces. Since four-dimensional space does

We will focus on curved surface (cell) in 4D. We'll understand them from new perspectives (thickening, lofting, solids of revolutions). Then some new objects - duocones, Polytwisters, and 4D spirals.

In the last post I mentioned that 4D urban traffic doesn't need overpasses because the ground is 3D, and traffic flows in two directions only need to follow skew lines. Now let's first study what road