Tag Archives: Science

Is cosmology in crisis?

Posted on May 19, 2019 by

In past posts, when I’ve written about the expansion of the universe, I’ve generally referred to the rate of that expansion, the Hubble constant, as being around 70 km/s/megaparsec, that is, for every megaparsec a galaxy is distant from us, … Continue reading →

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Emotions, feelings, and action programs

Posted on May 1, 2019 by

Sean Carroll’s latest Mindscape podcast features an interview with neuroscientist Antonio Damasio: When we talk about the mind, we are constantly talking about consciousness and cognition. Antonio Damasio wants us to talk about our feelings. But it’s not in an … Continue reading →

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Protecting AI welfare?

Posted on April 27, 2019 by

John Basl and Eric Schwitzgebel have a short article at Aeon arguing that AI (artificial intelligence) should enjoy the same protection as animals do for scientific research.  They make the point that while AI is a long way off from … Continue reading →

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The relationship between usefulness and falsifiability

Posted on April 25, 2019 by

There’s an article by Matthew R. Francis in Symmetry magazine garnering a lot of attention asking whether falsifiability is a useful criteria for scientific theories. Popper wrote in his classic book The Logic of Scientific Discovery that a theory that cannot be … Continue reading →

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Neanderthals and the beginnings of us

Posted on April 20, 2019 by

The Smithsonian has an interesting article up on what we currently know about Neanderthals.  The article details some of the internecine battles that always seems to be a part of the paleoanthropology field, in this case focusing on the capabilities … Continue reading →

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Is cosmic inflation settled science?

Posted on March 17, 2019 by

Ethan Siegel at Starts With a Bang has a post up arguing that the multiverse must exist.  His reasoning has to do with cosmic inflation.  Inflation is the theory that the universe expanded at an exponential rate in the first … Continue reading →

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Synthetic DNA and the necessity of biological mechanisms

Posted on February 24, 2019 by

Scientists have created synthetic DNA with four extra “letters”: A couple billion years ago, four molecules danced into the elegant double-helix structure of DNA, which provides the codes for life on our planet. But were these four players really fundamental … Continue reading →

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Why faster than light travel is inevitably also time travel

Posted on February 3, 2019 by

I’ve always loved space opera, but when I was growing up, as I learned more about science, I discovered that a lot of the tropes in space opera are problematic.  Space operas, to tell adventure stories among the stars, often … Continue reading →

Posted in Science Fiction, Space | Tagged , , , , , , | 81 Comments

Being committed to truth means admitting the limitations of what we can know

Posted on January 30, 2019 by

Michela Massimi has a long article at Aeon defending scientific realism. The time for a defence of truth in science has come. It begins with a commitment to get things right, which is at the heart of the realist programme, despite mounting Kuhnian … Continue reading →

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Manufacturing liquid fuel

Posted on January 26, 2019 by

One of the things that I think is often not appreciated about petroleum oil, is that it’s essentially stored solar energy.  Energy that was originally captured by life forms that died, sank to the bottom of oceans or lakes where … Continue reading →

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