Page "M-theory" Paragraph 33

Banks, Fischler, Shenker and Susskind ( BFSS ) conjectured that Matrix theory could provide the answer.

They demonstrated that a theory of 9 very large matrices, evolving in time, could reproduce the supergravity description at low energy, but take over for it as it breaks down at high energy.

While the supergravity description assumes a continuous space-time, Matrix theory predicts that, at short distances, non-commutative geometry takes over, somewhat similar to the way the continuum of water breaks down at short distances in favor of the graininess of molecules.