I find this helpful.
Yeah, I used to follow this guy's vlog. He says a lot of interesting things, but unfortunately he doesn't have any more support than other such ideas. He also doesn't seem to understand the science he uses quite as much as he probably should. He's very interesting to listen to, though. He also supports the transhumanist movement, which makes him awesome.
It's really not that useful, the video is basically pseudoscience. What he describes has little to do with actual physicist's theories about higher dimensions.
I am not a huge science nerd like most of you here are (that's a compliment btw), and I didn't understand all of it, but i thought it was pretty good.