Dimensions Quote by Edward Witten

“I think string theory provides an explanation.” “Some think that it is only when two strings encounter each other and some qualities are canceled…

— Liu Cixin

As you say, the way string theory requires all these extra dimensions and this comes from certain consistency requirements about how string should behave…

— Roger Penrose

One of the strangest features of string theory is that it requires more than the three spatial dimensions that we see directly in the…

— Brian Greene

“For string theory to make sense, the universe should have nine spacial dimensions and one time dimension, for a total of ten dimensions.”

— Brian Greene

Having those extra dimensions and therefore many ways the string can vibrate in many different directions turns out to be the key to being…

— Edward Witten

String theory is not the only theory that can accommodate extra dimensions, but it certainly is the one that really demands and requires it.

— Brian Greene

The theory has to be interpreted that extra dimensions beyond the ordinary four dimensions the three spatial dimensions plus time are sufficiently small that…

— Edward Witten

“Branes also opened up a whole new way of thinking about how our three-dimensional world might relate to the extra spatial dimensions of string…

— Lee Smolin

“Extending Polyakov's argument, he found evidence that the string theory describing those emergent strings is actually a ten-dimensional supersymmetric string theory. Of the nine…

— Lee Smolin

Technically you need the extra dimensions. At first people didn't like them too much, but they've got a big benefit, which is that the…

— Edward Witten

“There are really four dimensions, three which we call the three planes of Space, and a fourth, Time. There is, however, a tendency to…

— H.G. Wells

String theory envisions a multiverse in which our universe is one slice of bread in a big cosmic loaf. The other slices would be…

— Brian Greene