
Dave
 R
By stringing an infinite number of lines along a dimension perpendicular to the line, a twodimensional object called a plane can be obtained. And then if we string an infinite number of planes in either direction, we get three dimensional space.
http://qindex.info/d.php?c=5253#5249


Leonard Susskind
 R
The space itself may be more than three dimensions. But we can't visualize more dimensions. The architecture of the brain itself is evolved in the world of three dimensions. We only describe more dimensions by pure mathematics.
http://qindex.info/d.php?c=5253#5242

