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Comment by HeyTyson | Hacker News Reader

I thought the same until I watched it a second time.

4th dimension is still time. 'The button' takes you to your character's view of moving across a 3rd dimensional plane. I'm assuming the two different textures on the ground represent the change in the 4th dimension (time).

So when you cross to that other side and hit the button again, you're back in the 3rd dimension across a different plane (time). So the desert area is either in the past or in the future (when the wall fell or was being built).

Then he goes through the wall and hits the button again and walks back to his original 3rd dimension.

That's what I took from it anyway. Seems really neat.

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>4th dimension is still time. 'The button' takes you to your character's view of moving across a 3rd dimensional plane. I'm assuming the two different textures on the ground represent the change in the 4th dimension (time).

No, time is actually a 5th dimension in this 4D game projection.

The developer has actually done the proper 4 to 3D projections, like he has done for the 2/3D that he shows in the beginning.

In the 2D to 3D you can definitely see that he's not moving through "time", because you can see the 3rd dimension.

The problem is just that we can't intuitively visualize a 4th spatial dimension that makes this difficult.

But he's definitely not moving through "time" or in some "past" when the "wall wasn't there". And of course moving through time has different properties than moving through a 4th spatial dimension, so it's not really comparable.

E.g if we had a gradual rise in temperature from 0oF to 100oF in the time-dimension, then if you could move through the time-axis you'd experienced different temperature at will, whereas moving through any spatial axis would you'd only feel a partial rise in temperature.

That's how I saw it as well. When you rotate to the "side" (pivot) in the 4th dimension, you see the wall and its change over time as one entity. So then you can either pick going around the start (when construction of the wall began) or at the end (when the wall falls). Naturally the landscape would also experience change, hence the desert. When you pivot back, you are at the same location in time and space of the 3rd dimension, just in front of the wall now.

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