December 4, 2013 Is the brain a sort of quantum computer? What is consciousness? Marcelo Gleiser's brain is buzzing with big questions after participating in a conference that asked if quantum physics plays a role in how we think.
If you need empirical information about what is happening in the brain of a dog to know that dogs think, then either you've never met a dog or your own humanity is in doubt.
October 11, 2013 Do dogs think and feel? Are they persons? And if you are unsure, would the results of brain studies on dogs help you make up your mind? Alva Noë argues that, while an MRI can tell us many things about a dog's brain, it can't tell us more than we already know through our relationships with these wonderful animals.
September 11, 2013 We know a lot. But we don't know everything. In fact, science still has quite a few "big" questions left to answer. Physicist Marcelo Gleiser pokes at 10 of them, questions highlighted in a new book naming the most difficult scientific problems of our time.
How does our subjective reality emerge from the physical structures of the brain and body?
August 7, 2013 We don't know how the brain creates consciousness, the subjective you. So, can machines do it, too? Commentator Marcelo Gleiser confronts "the hard problem of consciousness" and finds a world in which what we can know may have its limits.
It's looking at you. But is it conscious? How do we know?
June 14, 2013 We face a paradox: Although we lack sufficient reason to believe in the consciousness of others, it would be plainly unreasonable for us to give up this commitment.
April 3, 2013 What can we say about how the brain creates our sense of self? A lot and yet surprisingly little, as it turns out. Commentator Marcelo Gleiser ponders the many challenges scientists face to make sense of our mind.
Where does the mind fit within the cosmos? Are they separate, intertwined or one and the same?
January 29, 2013 Is your Mind real, or just an afterthought in the life of your brain? What if the Mind was something as real as Space and Time and Higgs Bosons?
A car cannot be reduced to an engine, just as a person cannot be reduced to a brain.
Cameron Spencer/Getty Images
December 16, 2012 Science offers us Nothing But and we like it. Why? Why do we like to be told that we are nothing but our brains, when, after all, this is patently untrue? Alva Noë presses the question.
Do we really understand what's happening here?
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October 12, 2012 Can natural science find a place for us in its vision of the cosmos? Thomas Nagel, in a new book, demands we take this question seriously. He is right to do so.
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