![M-theory Image source: California Institue of Technology M-theory Image source: California Institue of Technology](http://www.timeone.ca/wp-content/uploads/2013/03/M-theory-e1403814479917.jpg)
Classification: theory
Chapter: The Problem of the Initial Condition
M-theory is the mother of all string theories. It combines five leading versions of string theory in an extra dimension (making 11 in all).
Classification: theory
Chapter: The Problem of the Initial Condition
M-theory is the mother of all string theories. It combines five leading versions of string theory in an extra dimension (making 11 in all).