Sky Motion said:
I can't see how he would be able to know all of these things without experiencing them firsthand, which it sounds like he has.
I want to address this view that many people have that when they hear someone describe something that's "far out", or perhaps they're an artist or musician who comes up with a really trippy, abstract piece of art, they conclude that "he had to take drugs" to make/say that. There are many intellectuals and artists who are both intelligent enough and creative enough to come up with such things without the slightest influence of drugs. They're just naturally creative/smart and they don't need drugs to get into the same mental space that most of us here do. It would be nice to think that Michio Kaku smoked DMT and experienced the theories he works with every day first hand, but I think it's more likely that this is where his research/intuition lead him, and it happens to seem to be an accurate way of the way we experience hyperspace because hyperspace is really there. It would be like having a bunch of people living in a pitch black warehouse their whole lives. Some of them find infrared goggles and can miraculously see the structures all around them (dismissing the thought that their visual cortex wouldn't have developed in pitch darkness

), so they see all the infrastructure of the warehouse but don't know how to explain it. A wise man in this warehouse tribe without having used any infrared goggles has successfully described many of the strange things that these people have seen. Why? Because those things are actually there. It has nothing to do with wearing the goggles.