David Yerle Writes about Multiple Universes
David Yerle writes about the existence of infinite universes, each one unique. In philosophy this is called “modal realism.” David Yerle will give some arguments for it and some against it and then...
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David Yerle writes about materialism. He feels our knowledge of the world has changed so dramatically in the last hundred years that the word needs a little clarifying. There are two possible ways of...
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What Is the World Made of?
David Yerle writes about what the world is made of. It seems an easy question to answer: probably most people will say “stuff,” since the world is indeed made of it. But what is stuff made off? David...
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Is Space Real?
Space is where things happen. Where chairs are located. The place where we move around. Try to imagine a universe without space and you will probably fail. We are equipped to fathom a vast emptiness,...
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Singularities, Demystified
I recently had an interesting exchange on Twitter on the topic of singularities and decided to write a longer entry in order to tackle the topic in a systematic manner. I also thought it would be...
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String Theory: Take It or Leave It
I frequently get asked questions about string theory. Has it been confirmed? It’s just one of the many possible unified theories, right? What is it, exactly? In this post I want to explain some of the...
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A Hopefully Understandable Explanation of the Future Doom of the Universe
If you’ve been reading the news, you probably know our universe is unstable and is likely to be swallowed by an alternate one, some time in the next 20 billion years. If this is a shocking revelation...
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Why the Standard Model Is the Ugliest Theory Ever Made
You’ve probably heard about the standard model (SM). Actually, the acronym, which sounds a little like S&M, is pretty justified. If you have not heard about it, let me give you a brief summary:...
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The Secret for Happiness Physicists Don’t Want You to Know
Before I start: I implore you read this article until the end, especially if you’re a long-time reader of this blog. I also urge to please not skip. But, if you have to choose between skipping and not...
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A Physics Challenge: Explain Pauli’s Exclusion Principle
I was recently teaching a grade 12 physics class and had to explain why only two electrons can be in the same orbital. My explanation went a bit like this (follow the links for explanations of the...
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