Going through Google results gave me an idea of the current "perpendicular universe" theory - any universe, parallel or otherwise, which interacts with another.

Being 15, I'm no expert in the field, and I get the idea that string theory (and who knows what else) may present a problem with this, but here goes anyway:

I'll use "flatlands" for the explanation - if you haven't read the book imagine a 2 dimensional universe, maybe a piece of paper with stick figures living in it. It has no thickness, so we couln't see it if it existed, but imagine it with thickness so you can see it. Now, because time is a dimension, imagine a flatland moving along an axis perpendicular to its plane - this is time, through which the flatland is moving. The picture should look like a 3D graph with a plane on the X-Y axis. Then take another flatland, also with a time axis, and set it perpendicular to the first. These two universes are at right angles to each other. They share one dimension of space, so where they intersect there is a true line (1 dimensional), and that has no effect on the planes because with no thickness in one direction it technically does not exist for them, as a flatland does not for us. They are in the same spacetime, but have no effect on each other. This can be brought up a dimension to a universe with 3 dimensions of space and 1 of time, like our own.

So, my questions: Is this plausible? Has it been though about before? If it is possible, how might you get into a perpendicular universe?

If you can think circles around me, which many people here probably can, I'm sorry for the layperson-oriented explanation. If the whole thing is completely impossible to understand due to my bad explanation, I'm sorry for that too.

Thanks in advance for the help!!

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73 for now,

~Darin Wick

Have a nice day!