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 challenges from the history of science, considerations about modelling, and values in contemporary scientific practice. … Continue reading Being committed to truth means admitting the limitations of what we can know
Tag: Science
Manufacturing liquid fuel
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 under stagnant water they couldn't decompose, and were eventually covered and put under pressure. This … Continue reading Manufacturing liquid fuel
Blindsight explained and conscious perception
Warning: neuroscience weeds. Every so often we get into discussions about where in the brain consciousness lies. Sometimes it's asserted to be in the brainstem, other times in the thalamus, sometimes in the parietal lobe, and yet other times in the prefrontal cortex. Myself, I've concluded that conscious perception requires activation of a network including … Continue reading Blindsight explained and conscious perception
Dark energy and repulsive gravity
Over the weekend, Sean Carroll put up a blog post to address common misconceptions about cosmology. I understood most of his points, but was confused when I saw this one: Dark energy is not a new force; it’s a new substance. The force causing the universe to accelerate is gravity. Carroll was referring to the accelerating … Continue reading Dark energy and repulsive gravity
A qualified recommendation: Consciousness Demystified
A couple of years ago I did a series of posts inspired by Todd Feinberg and Jon Mallatt's excellent The Ancient Origins of Consciousness, a book on the evolution of animal consciousness. Somewhat building on what I had read in Antonio Damasio's Self Comes to Mind, it was a pivotal point in my exploration of … Continue reading A qualified recommendation: Consciousness Demystified
Sean Carroll on the Many Worlds Interpretation of quantum mechanics
Related to the post last week on quantum mechanics, here is a talk that got mentioned in the discussion thread. Warning: Carroll is a passionate advocate for the Many Worlds Interpretation, so don't expect a fair and balanced discussion. The video is about an hour long. http://www.youtube.com/watch?v=iXRLDatmbgA A couple of points. Carroll notes that we … Continue reading Sean Carroll on the Many Worlds Interpretation of quantum mechanics
Do all quantum trails inevitably lead to Everett?
I've been thinking lately about quantum physics, a topic that seems to attract all sorts of crazy speculation and intense controversy, which seems inevitable. Quantum mechanics challenges our deepest held most cherished beliefs about how reality works. If you study the quantum world and you don't come away deeply unsettled, then you simply haven't properly … Continue reading Do all quantum trails inevitably lead to Everett?
Dogs have metacognition, maybe
Last year in a post on panpsychism, I introduced a hierarchy I use to conceptualize the capabilities of systems that we intuitively see as conscious. This isn't a new theory of consciousness or anything, just my own way of making sense of what is an enormously complicated subject. That hierarchy of consciousness was as follows: … Continue reading Dogs have metacognition, maybe
Are there things that are knowable but not measurable?
It's a mantra for many scientists, not to mention many business managers, that if you can't measure it, it's not real. On the other hand, I've been told by a lot of people, mostly non-scientists, and occasionally humanistic scholars including philosophers, that not everything knowable is measurable. But what exactly is a measurement? My intuitive understanding … Continue reading Are there things that are knowable but not measurable?
Predicting far future technologies
Prediction is very difficult, especially about the future. Niels Bohr If you're a science fiction writer, one of the things you do is try to predict what future technologies will come along. If you're not writing hard science fiction, this is relatively easy. You just come up with a cool capability and throw in some … Continue reading Predicting far future technologies
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