Before I embark on this blog post, a few words for regular readers. I have to apologise for the blog falling dormant for a month. This was because I have been working intensely on a book (a physics textbook), and also because I have been mulling over what to write. Also, I put up quite a lot of content just before the dormant period so I hope there was enough to be going on with (see under resources/talks). Finally, regarding comments: thanks for all constructive comments. They are all much appreciated and encouraging. However it is hard to keep up with moderating them because I have had over 7000 comments in total, almost all of them spam. I hope some day to get some help with the filtering process, but until I do that the situation will continue to be slow.

The post you are reading now was prompted in part by a recent talk at the physics department here in Oxford. The talk was the 2015 Wetton Lecture, delivered by Professor Carlo Frenk, Director, Institute for Computational Cosmology, University of Durham, and it had the title
Everything from nothing, or how our universe was made

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