The title is pretty self-explanatory... any suggestions on where to start doing something like this? I'm an intermediate AE user but a complete beginner with anything 3D, so I'm not even sure AE is the right application for this... thanks everyone!
This is a tricky one. You could create or import a Möbius strip model into C4D Lite (which is included with your AE subscription). You can create a looping texture in After Effects and render this out, then use that as the texture for your Möbius strip. It’ll be a bit of trial and error to get the dimensions of your video right so it doesn’t stretch.
If the shot you’re after is not too fancy, maybe you can fake a Möbius strip with a combination of CC Ball Action to provide the twist and CC Cylinder or Sphere to wrap the text back onto itself.