I get the idea of dimensions of reality and how there are eg infinite two dimensional planes in our 3d one. What I don’t get is why they can’t be moved between. In a 3d cube we can draw a 2d line between any two points by changing the direction.
Applying this to reality, if we exist in a universe with more than 3 dimensions, why are we unable to change the “direction” we are in?
I’ve often heard extra dimensions described as planes but why can we not change planes in the same way a diagonal line would. Is it because the concept of a higher dimensional direction doesn’t exist in our lower dimension?
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If there are any higher dimensions, it’s assumed we already exist in them, because it wouldn’t make sense otherwise. However, that doesn’t mean we can sense that dimension in a meaningful way. Each new dimensional plane intersects with the other existing planes at 90 degree angles. If you have a simple line, that is intersected at 90 degrees to create two axes, which we generally call X and Y. A graph with an X-axis and a Y-axis is 2D. By intersecting both of them at 90 degrees again, we create a Z-axis. To create a 4th plane, we would need to cross all 3 planes of existence at perpendicular angles, which makes no sense to our human minds. That doesn’t mean it doesn’t exist, but if it does exist, we won’t be able to detect it directly.
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