The next topic from the Carroll-Craig debate which I wish to discuss is what Science has to say about whether or not there was a beginning. Was there a first moment of time, before which the universe did not exist? … Continue reading
I've written a pop-article about Time Machines and Event Horizons, which has appeared on the Scientific American blog Critical Opalescence. George Musser, my host, is an editor at Scientific American, and kindly gave me this opportunity to talk about some … Continue reading
Another question from St. Paul, the reader from New Zealand: I hope that you are well and that you are having fun with your work. I see that you posted our email exchange on your blog, it was a great … Continue reading
A friend of mine from St. John's College, who was recently accepted to a physics doctoral program at Penn State, asked me what my opinion of Loop Quantum Gravity is. I replied be email, and then I decided, why not … Continue reading
Suppose you want to write down the laws of physics. How would you go about it? What? You want to do some experiments first? Forget about that. This is theoretical physics. Let's not worry about pedantic things like what the … Continue reading
