tag:blogger.com,1999:blog-7307840825023135484.post2219274515696689243..comments2023-04-16T03:44:23.949+12:00Comments on Arcadian Pseudofunctor: Theory Update 96Keahttp://www.blogger.com/profile/05652514294703722285noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-7307840825023135484.post-69472562398587591582011-07-27T15:51:50.074+12:002011-07-27T15:51:50.074+12:00I once heard a Fields Medallist (not a physicist) ...I once heard a Fields Medallist (not a physicist) say that symmetric structures are where it is at ... but you see, at that time planar operads were the coolest things around and $4$-categories the most sophisticated idea with physical applications. Now note that twistorial gravity requires $6$-categories, which we begin to investigate with braided structures, albeit adding a third product structure and imagining three singular levels beneath the braided surfaces (ribbons).Keahttps://www.blogger.com/profile/05652514294703722285noreply@blogger.com