That seems likely, when you consider most of the data in the afterlife books. Especially Michael Newton's books. I wonder if the scientist in the video that used other 'universe' couldn't say or conceptualize higher dimension... Then again, the whole theory was about higher dimensions... So, I don't know. They were just theorizing. But that story with the portal- I am pretty sure he was interviewed by Art Bell, seems like I heard about him before...