1) The infinity seems unlikely to be a problem. Our own three-dimensional space can be subdivided into an infinite number of two-dimensional subspaces. That does not mean we would want to move into them, even if we could.
2) My own personal opinion is that all talks about things on the Planck scale, rarely amount to more than a wild speculation, even if we restrict ourselves to our own “unreal” three-dimensional world. I would not presume even to speculate how an additional dimension might affect this problem.
Thanks for your comment.
1) The infinity seems unlikely to be a problem. Our own three-dimensional space can be subdivided into an infinite number of two-dimensional subspaces. That does not mean we would want to move into them, even if we could.
2) My own personal opinion is that all talks about things on the Planck scale, rarely amount to more than a wild speculation, even if we restrict ourselves to our own “unreal” three-dimensional world. I would not presume even to speculate how an additional dimension might affect this problem.