Welcome to “Cross-Check,” my free online journal. I call it a journal because blogs are dead, or so I hear, and “journal” captures the personal, not to say self-indulgent, style in which I tend to write. This journal is free in two senses: you can read it for free, and I am free to write what I like.

I considered various names for this journal: “Horganism” (my Twitter handle). "Mind-Body Problems" (because everything is a mind-body problem, if you think about it). “Unscientific Unamerican” (how disgruntled Scientific American subscribers have addressed me). “Disgusting Flaccid Balls of Bile Disguised as Honest Argument” (how a fellow writer characterized my writing—see comments on this post if you‘re curious).

I’m going with “Cross-Check” for sentimental reasons. I wrote a blog called “Cross-Check” for Scientific American from 2010 to 2020, when the magazine retired its blogs and I became a guest columnist. I loved writing for Cross-Check, because Scientific American gave me almost complete freedom. But I was never entirely free, and several years ago Scientific American put my posts behind a paywall. This new Cross-Check is free in both senses.

“Cross-Check” is also my way of remembering my buddy Robert Hutchinson, who died in 2021. It was Robert who, knowing my fondness for pond hockey, suggested back in 2010 that I call my blog “Cross-Check.” In hockey, a cross-check is a dirty move, which involves whacking your opponent with your stick. “Cross-Check” also describes my style of science journalism, which can be bumptious—but not, I like to think, dirty.

I’ve made a living whacking experts, people with doctorates and tenure and so on. I’m especially hard on scientists touting flimsily supported big ideas, from the many-worlds interpretation to the deep-roots theory of war. And yet I lack expertise in anything, and my default state is befuddlement. Sometimes my know-it-all/know-nothing schtick seems contradictory even to me, but I just call things as I see them.

So what’s the point of this journal? It’s not to make money, and I long ago gave up the illusion that my writing can change the world; I can’t even get my students to agree with me that war can and must end, and I hold the power of grades over them!

I keep writing because it makes me feel good. Writing helps me untangle my thoughts, so I can see more clearly. I also like being read. Readers serve as a reality check: Am I full of shit or onto something? Feel free to tell me via email (horganism3@gmail.com), social media (I’m on Facebook as well as Twitter) or comments on journal entries.

I post new material here as well as stuff previously published on ScientificAmerican.com; I want to set that paywalled content free! If you want to know when I’ve posted something new, follow @horganism on Twitter/X or, better yet, use “Subscribe” below to get email notifications. Below are my columns so far.

COLUMNS IN REVERSE CHRONOLOGICAL ORDER

APRIL

Consciousness and the Dennett Paradox

Nicaragua, Quantum Mechanics and Other “Solutions” to Habituation

The Consciousness Salon

Defending My Naïve Realism

Is Derealization a Delusion or Insight?

MARCH 2024

Is “Information” Eternally Conserved?

The Statistics of Lovers’ Quarrels

Frans de Waal (RIP) and the Origins of War

Can Physics Ease the Sting of Death?

My Melanoma Melodrama

My Daily Routine

Quantum Mechanics, the Chinese Room and the Limits of Understanding

FEBRUARY 2024

Ten Tough, Terrific Quantum Books

Multiverses Are Pseudoscientific Bullshit

Is the Schrödinger Equation True?

Will Psychedelics Save Us? Nah

Quantum Mechanics, Free Will and “The Game of Life”

JANUARY 2024

Stuff I Love Making Students Read

Mitchell Feigenbaum and the End of Chaoplexity

The Chaoplexity Delusion

Things Were Worse When I Was Young

Bayes’ Theorem and Bullshit

Self-Doubt Is My Superpower

DECEMBER 2023

Free Will, War and the Tolstoy Paradox

Is Killing Children Ever Justified?

Quantum Mechanics and the Holiday Blues

Farts, Boners and Free Will. Seriously

NOVEMBER 2023

Dear Feminists, Please Help End War!

Thanksgiving and Scientists’ Slander of Native Americans

My Doubts about The End of Science

Free Will and ChatGPT-Me

Free Will and the Could-You-Have-Chosen-Otherwise Gambit

Free Will and the Sapolsky Paradox

OCTOBER 2023

Can Beauty Redeem the World?

Theories of Consciousness, Gaza and My Cognitive Dissonance

Can a Chatbot Be Aware That It’s Not Aware?

A Buddhism Critic Goes on a Buddhist Retreat

Cutting Through the ChatGPT Hype

The Golden Bowl and the Combinatorial Explosion of Theories of Mind

Why Time Flies When You’re Old

SEPTEMBER 2023

The Rise of Neo-Geocentrism

The Brouhaha Over Consciousness and “Pseudoscience”

The Big Bang Theory Is True. Deal With It

The Ocean Is Getting on My Nerves

AUGUST 2023

Drawing a Pen with the Same Pen and Other Strange Loops

Entropy, Meaninglessness and Miracles

The Delusion of Scientific Omniscience

Pluralism: Beyond the One and Only Truth

My Encounter with Philosophical Anarchist Paul Feyerabend

The Popper Paradox

JULY 2023

Oppenheimer, Bethe and the Doomsday Hypothesis

Thomas Kuhn’s Skepticism Went Too Far

Is Self-Knowledge Overrated?

What’s the Point of the Humanities?

Should Machines Replace Mathematicians?

JUNE 2023

My Meeting with David Bohm, Tormented Quantum Visionary

Physicist John Wheeler and the “It from Bit”

My Meeting With Claude Shannon, Father of the Information Age

How Dave Chalmers Invented the “Hard Problem”

Confessions of a Namedropping Humblebragger

My Bloomsday Tribute to James Joyce, Greatest Mind-Scientist Ever

My Slam-Dunk Arguments for Free Will

How I Kicked Caffeine

How AI Moguls Are Like Mobsters

MAY 2023

You’re Not Free If You’re Dead: The Case Against Giving Ukraine F-16s

Mammography Screening Is a Failed Experiment

Do Colonoscopies Really Save Lives?

APRIL 2023

We’re Too Scared of Skin Cancer

The Cancer Industry: Hype Versus Reality

Tripping in LSD's Birthplace: A Tale for Bicycle Day

What Is It Like to Be God?

Advice to Aspiring Science Writers: Remember Marx

My Controversial Diatribe Against “Skeptics”

What Is a Question?

The Dark Matter Inside Our Heads

The Solipsism Problem

MARCH 2023

On God, Quantum Mechanics and My Agnostic Schtick

The End of Philosophy: What’s the Point? A Call for Negative Philosophy

Philosophy: What’s the Point? Part 4: Maybe It’s Poetry with No Rhyme and Lots of Reason

Philosophy: What’s the Point? Part 3: Maybe It Should Stick to Ethics

Philosophy: What’s the Point? Part 2: Maybe It's a Martial Art

Philosophy: What’s the Point? (Hint: It’s Not Discovering Truth). Part 1 of a Series

The Weirdness of Weirdness

Sabine Hossenfelder, The End of Science and My Quantum Experiment

FEBRUARY 2023

Conservation of Ignorance: A New Law of Nature

Confessions of a Woke, Antiwar, Hockey-Playing Demonic Male

The Upside of Getting Old and Falling on Your Face

JANUARY 2023

Can Curses Topple Putin and Other Tyrants?

Huge Study Confirms Science Ending! (Sort Of)

How Ho-Ho-Hoboken Became My Home

Is Ultimate Truth an Equation? Nah

Physicists Teleport Bullshit Through “Wormhole”!

Horgan’s Books

Pond-hockey game in the Hudson Highlands. I think I’m in this picture, but I’m not sure. Photo by my tough old teammate John Benjamin.

About Cross-Check,
John Horgan’s Free Journal