If a Brain Train World is infinite, how does a Brain Star travel around it?

Answer 1

Contrary to popular belief, the Brain Train world is actually infinite. It’s impossible to travel more than 18 blocks in any direction (and I don’t think you can set the world border any higher), but the world generation doesn’t stop there - you can go to the loading dock and see the world go on infinitely far past this point.

It is also known that the Brain Train world is flat, not a 3D shape. We know this because the gravitational force is constant no matter how high you go, which is true for infinite flat worlds (with thickness) but not with a 3D shape

Something else interesting is that no matter how high you go, the Brain Star stays the same size. You’d think that if the sun were a certain distance from the Brain Train world then it would appear bigger as you moved closer. Furthermore, the Brain Star does go down over the horizon without (as far as we know) moving through the Brain Train world.

Therefore, we have reached the conclusion that the Brain Star is infinitely far away from the Brain Train world - so infinitely far away that it goes beyond the infiniteness of the Brain Train world. Though we have a problem - how can an infinitely far object have any apparent size? For instance, if you were to travel further and further away from the Brain Star, it would become smaller and smaller until it eventually disappeared. This is true for any object of finite size, which leads us to the next conclusion - that the Brain Star is infinitely large.

To summarize, the Brain Star is an infinitely large mass an infinite distance away from the Brain Train world.