tag:blogger.com,1999:blog-7315236707728759521.post1667010139461970439..comments2024-03-27T22:28:06.861-06:00Comments on Dispatches From Turtle Island: Motivic GravityAndrew Oh-Willekehttp://www.blogger.com/profile/02537151821869153861noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-7315236707728759521.post-20371872723189608552019-05-03T03:38:34.491-06:002019-05-03T03:38:34.491-06:00Urs Schreiber remarks that the mainstream use of m...<a href="https://www.physicsoverflow.org/8964/" rel="nofollow">Urs Schreiber</a> remarks that the mainstream use of motives in amplitudes is just technical and algebraic - motivic theory has produced some useful identities. The attempt to guess why motives are relevant leads to more high-flown speculations by Connes and others (e.g. Kontsevich). <br /><br />Within string theory, getting space-time from motives is particularly the purview of Ralf Schimmrigk. Mitchellhttps://www.blogger.com/profile/10768655514143252049noreply@blogger.com