with Roberto Mangabeira Unger on the implications of the hypothesis that there is only one universe which must be explanatorily closed. Research at Perimeter Institute for Theoretical Physics is supported in pan by the Government of Canada through NSERC and by the Province of Ontario through MRI. [I] L. de Broglie. Solvay Conference. 192

ful to Giovanni Amelino-Camelia for forwarding to me a draft of a paper which addresses related issues from a different perspective[23]. Research at Perimeter Institute for Theoretical Physics is supported in part by the Government of Canada through NSERC and by the Province of Ontario through MRI. References [1] G. Amelino-Camelia, Rel

riety of events over a long period of time. As a result of some =1 those investigations, two institutions — Case Western Reserve Un=versity and the Perimeter Institute for Theoretical Physics — bann=d him from their campuses. And both Arizona State University and Australia= National University said on the record that he lied about what th