LogFAQs > #893418639

This doesn't make any sense to me. That's just 3D. Regular movies are 2D.

The fourth dimension, mathematically, is beyond human comprehension. Although in some ways it can be "implied" as an abstract. (If you say 4D is "time" you are wrong, and simply parroting ignorance. Although, modern Quantum Physics would argue that 4 dimensions are the reason for things like perceived time and gravity [the 3D object has created a space in the 4D object which you are falling in to.])

An exercise to help better explain would be a 2D man living on a 3D cube. He can only mathematically perceive 2 dimensions, that is all his world and brain can do. Height and width. However, if he goes over the corner of the 3D cube, it still effects his existence, whether he can understand it or not. Some scientists theorize that we are 3D creatures living in a 4D world that we cannot comprehend, in the same regard.

So, why is it called 4D? Spraying water up someone's butthole is just still 3D.
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Ever since the day you left, my fate's been set unknown... How many years to walk this path alone?
[...] So why'd you close your eyes... why can't I shut mine?