I was looking at the diagram for a wormhole: A 2D plane is bent and then its ends are pinched together, creating a kind of 3D tunnel representation of what a 2D wormhole would be:

This has made me think about how to visualize a wormhole in 3 dimensions, and I thought long and hard about the "tunnel" that connects the two points in spacetime.

From a 2D standpoint, if you are inside the tunnel, then you could theoretically turn to the left or right, and then keep going straight forever. From a 3D standpoint, you would just going around the tunnel in circles, but from your own 2D perspective, you would be walking continuously in the same direction with the world looping forever. In other words, until you turn again, you're stuck in there.

Could this be possible in a 3D representation and be used as a plot point in my story?

Is it possible to get trapped inside a wormhole?

Maybe this could be achieved by blocking off the "entrances" to the wormholes (by surrounding the wormhole on all sides at each point) while someone is traversing it?

Or (and this is what I believe to be the answer) are the two points in spacetime blended together seamlessly, where there isn't really a "space" between them? Basically, is the diagram a false representation simply used to help us visualize it? Is there no "tunnel" at all?

posted almost 5 years ago

overlord - Reinstate Monica‭

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