Quote:
Originally Posted by a1call
What I meant was a reference to the video where it was stated that dark matter is the result of gravitational pull of the extra-universal matter(my wording). Hence across 4D (a dimension other than our 3D). I understand your concept of time being the 4th dimension. However the video deals with multi-verses and actual Euclidean extra dimensions (not time). Listen to the video again and note the 2D pond analogy.
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Nuts.
That's Kaku trying to sell his wildly speculative books. IMO he has discovered that there is more money in hyped-up books than there is in physics.
There seems to be a new paradigm -- if you can't produce a prediction with strings, maybe you can produce a book. This is unfortunate as it destroys credibility of people who are actually trying to do real research.