Mark Solms’ theory of consciousness

Cover for The Hidden Spring

I recently finished Mark Solms' new book, The Hidden Spring: A Journey to the Source of Consciousness. There were a few surprises in the book, and it had what I thought were strong and weak points. My first surprise was Solms' embrace of the theories of Sigmund Freud, including psychoanalysis. Freud's reputation has suffered a … Continue reading Mark Solms’ theory of consciousness

The nature of splitting worlds in the Everett interpretation

Schrodinger's cat in many worlds

This post is about an aspect of the Everett many-worlds interpretation of quantum mechanics. I've given brief primers of the interpretation in earlier posts (see here or here), in case you need one. Sean Carroll, as he does periodically, did an AMA on his podcast. He got a number of questions on the Everett interpretation, … Continue reading The nature of splitting worlds in the Everett interpretation

The right reason to doubt the simulation hypothesis

This weekend, Sabine Hossenfelder did a video and post about the simulation hypothesis, the idea that we might be living in a computer simulation. She dismisses the notion that consciousness can't be a computational simulation, which I think is correct, but then settles on the idea that physics itself can't be simulated, because we have … Continue reading The right reason to doubt the simulation hypothesis

The return of heretical thought?

A nuclear explosion

A couple of weeks ago I highlighted Robin Hanson's ideas about alien civilizations. A big part of Hanson's reasoning involved the Fermi paradox, the question that, if alien civilizations are common, there where is everyone? It seems like Earth should have been colonized long ago. Hanson focused on the number of difficult evolutionary filters life … Continue reading The return of heretical thought?

The safety of nuclear power?

Kurzgesagt takes a look at the number of deaths from nuclear power in comparison with other sources. You might find the actual numbers surprising. Kurzgesagt - in a Nutshell: How Many People Did Nuclear Energy Kill? Nuclear Death Toll I think the video makes an important point. But by focusing exclusively on deaths, it … Continue reading The safety of nuclear power?

Aliens and intergalactic spheres of influence

Over the years, I've done a lot of posts speculating about alien civilizations. My take is generally that while extraterrestrial life may be prevalent in the universe, complex life is rare, and intelligent civilization producing life is profoundly rare. This seems evident from our own history, where simple life appears to have started as soon … Continue reading Aliens and intergalactic spheres of influence

Ars Technica’s series on quantum mechanics: How big is a particle?

A couple of weeks ago, I shared Ars Technica's first article in a series on quantum mechanics that promised to be math and philosophy free. So far, the author, Miguel Morales, has stuck to that promise. Today he published the third installment. This one focuses on the size of particle, and why that's far from … Continue reading Ars Technica’s series on quantum mechanics: How big is a particle?

The location of the global workspace

(Warning: neuroscience weeds) I've discussed global workspace theories (GWT) before, the idea that consciousness is content making it into a global workspace available to a vast array of specialty processes. More specifically, through a neural competitive process, the content excites key hub areas, which then broadcast it to the rest of the specialty systems throughout … Continue reading The location of the global workspace