
Chimp Guy Knocks Baboon Guy's Upbeat View of Human War
Harvard’s Richard Wrangham and Stanford’s Robert Sapolsky clash over claim that war has deep evolutionary roots
John Horgan is a freelance journalist and a former Scientific American staff writer. He comments on science in his free online journal, Cross-Check, and he has also posted his self-published books Mind-Body Problems (2018) and My Quantum Experiment (2023) online. Horgan teaches science writing at the Stevens Institute of Technology.

Chimp Guy Knocks Baboon Guy's Upbeat View of Human War
Harvard’s Richard Wrangham and Stanford’s Robert Sapolsky clash over claim that war has deep evolutionary roots

The Promise of LSD Microdoses and Other Psychedelic "Medicines"
Psychiatrist John Halpern discusses the psychotherapeutic potential of peyote, ayahuasca, psilocybin, MDMA and other psychedelics

Tripping on Peyote in Navajo Nation
A journalist exploring psychedelics’ therapeutic potential participates in a ceremony of the Native American Church

Why We Overrate the Lifesaving Power of Cancer Tests
Science journalist Gary Taubes weighs in on PSA tests and mammograms

Why I Won't Get a PSA Test for Prostate Cancer
Physicians are still recommending the blood test for prostate cancer even though it harms far more men than it helps

How Quarks Turned into Cultures
Big-picture biologist Tyler Volk talks about his book on “How We Came to Be”

Second Thoughts: Did Thomas Kuhn Help Elect Donald Trump?
Scholars debate filmmaker Errol Morris’s attack on Kuhn’s influential philosophy of science

Did Thomas Kuhn Help Elect Donald Trump?
Filmmaker Errol Morris claims Kuhn’s critique of science paved the way for a post-truth presidency

Second Thoughts on Whether Self-Knowledge Is Overrated
Intellectuals defend the value of being intellectuals.

Is a Popular Theory of Cosmic Creation Pseudoscience?
Physicists battle over whether the theory of inflation is untestable, and hence not really scientific

Is Self-Knowledge Overrated?
Scientists and philosophers doubt the ancient claim that vigorous examination of yourself and others makes you a better person

Why String Theory Is Still Not Even Wrong
Physicist, mathematician and blogger Peter Woit whacks strings, multiverses, simulated universes and “fake physics”

What's Your Utopia?
Imagining an ideal world can help us make this world better

David Chalmers Thinks the Hard Problem Is Really Hard
Consciousness will still mystify us even if we scientifically solve it, philosopher predicts

Will Neuroweapons, Micro-Drones and Other Killer Apps Really Make Us Safer?
Americans should have a more vigorous debate over Pentagon’s relentless pursuit of “disruptive” innovations

R.I.P. Huston Smith, Religious Scholar Who Defended Psychedelics' Spiritual Potential
The advocate of "perennial philosophy" held that “entheogens” can provide glimpses of transcendent truths embodied in religions

Is Nuclear War the Only Cure for Inequality?
A historian claims only apocalyptic destruction can close the gap between rich and poor

Is Consciousness Real?
Philosopher Daniel Dennett tries, once again, to explain away consciousness

Why Freud Still Isn't Dead
Psychoanalysis still attracts adherents in spite of relentless criticism and the rise of psychopharmacology and other alternatives

Polymath Stephen Wolfram Defends His Computational Theory of Everything
Creator of Mathematica and A New Kind of Science remains confident that he can transform science and other realms of knowledge

Astronomy Writer Confronts Mysteries of Inner Space
Science Journalist Michael Lemonick answers questions about his new book The Perpetual Now: A Story of Amnesia, Memory, and Love.

Philosophers Push Back
Philosophers react to a science journalist’s critique of their calling

What Is Philosophy's Point?, Part 5--A Call for "Negative Philosophy"
Philosophy’s chief value is countering our terrible tendency toward certitude

What Is Philosophy's Point?, Part 4--Maybe It's Poetry with No Rhyme and Lots of Reason
The line between philosophy and the arts can get awfully blurry