Among the difficulties one encounters when trying to communicate ideas, is that extremely simple ideas often require an extremely exact (hence complex and specialized) language to cummunicate them. I'd be tempted to advise someone reading this talk to "not allow yourself to succumb to the temptation of assuming that you are following the thread of the conversation simply because most of the words are familiar". However, I have no reason to believe that this advice is helpful, or even appropriate. If, after this, you are still interested in reading ToTM #68, it is a speculative tour de force by four physicists and one mathematician to construct a model of the universe.