How accurate is this video about higher dimensions?

Jakeness

I thought it was pretty straightforward until 4:26, until they started making some questionable claims. I'm no expert so I thought I'd ask here.

http://www.youtube.com/watch?v=0ca4miMMaCE

RGD622

I am also very curious about this, as this video has been on my mind ever since I saw it a few years ago.

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Jakeness	How accurate is this video about higher dimensions? Tweet I thought it was pretty straightforward until 4:26, until they started making some questionable claims. I'm no expert so I thought I'd ask here. http://www.youtube.com/watch?v=0ca4miMMaCE

RGD622	I am also very curious about this, as this video has been on my mind ever since I saw it a few years ago.