Or maybe a brane... <A HREF="http://feynman.physics.lsa.umich.edu/~mduff/talks/1988%20-%20The%20Membrane%20at%20the%20End%20of%20the%20Universe/index.html" target="_blank">http://feynman.physics.lsa.umich.edu/~mduff/talks/1988%20-%20The%20Membrane%20at%20the%20End%20of%20...</A> <img src=http://feynman.physics.lsa.umich.edu/~mduff/talks/1988%20-%20The%20Membrane%20at%20the%20End%20of%20the%20Universe/2.jpg>