You can think of space-time as a 4D object. If it’s a flat plane (more correctly, a hyperplane), it could be infinitely big. If it’s s sphere or a torus, it would be finite. It could also be an infinitely long pipe.
Either way, the shape doesn’t have to be perfectly smooth. A plane can have wrinkles, where two points touch. Likewise, a pipe can have knots and bends. All of this would happen in 4D space, so our 3D brains can’t really visualize any of it.
I’m still in the messy stage, but I’ve made preparations for C. Pretty soon I’ll get a newer used phone and tablet, and they’re both going to be type C.
Currently I have a few things that use C, so I’ve already got some cables and chargers for them. Once the transition is complete, I’ll get rid of a bunch of old cables.