Alex O’Connor
Philosopher & Podcaster · Cosmic Skeptic
Alex O’Connor, known online as Cosmic Skeptic, is a British philosopher and podcaster whose work explores ethics, meaning, religion, and science. He rose to prominence through his YouTube channel before transitioning to long-form interviews and philosophical essays.
What sets O’Connor apart is his tone: rigorously philosophical, genuinely curious, and committed to engaging with the strongest version of opposing views. He hosts believers and non-believers alike, and takes both seriously.
Steelmanning as method
O'Connor insists on engaging with the strongest version of opposing arguments. His conversations with believers are notable for this — he takes their positions seriously before responding, which makes the pushback more effective.
Moral realism with humility
He argues for the existence of objective moral facts while holding his specific conclusions tentatively. The philosophical rigor here is unusual for content aimed at a broad audience.
Philosophy made accessible
His signal contribution is demonstrating that the arguments around God, consciousness, and ethics don't require academic philosophy to follow. Clear thinking and clear language are enough.
Curiosity over polemic
Unlike some public atheists, O'Connor is genuinely curious about why people believe what they believe. He hosts guests who disagree with him regularly, and takes their answers seriously.
Highlights and best clips
Selected clips
Best quotes
“The goal isn't to win. The goal is to get closer to the truth — and sometimes that means changing your mind in public.”
“If you can't steelman the other side's argument, you don't understand it well enough to criticise it.”
“Moral realism isn't just a philosophical position — it's the implicit assumption behind every moral claim anyone actually makes.”
“Religion is fascinating precisely because intelligent, thoughtful people believe it. That demands a serious response, not a dismissive one.”
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Richard Dawkins
Evolutionary biology and critiques of religion.
Christopher Hitchens
Legendary debate moments and essays.
Watch the best debates
The most consequential religious debates, curated.
The moral argument
The moral argument — O'Connor's sharpest topic.