Uploaded May 2026 | Updated September 2026, 2 weeks ago
To learn for free on Brilliant for a full 30 days, go to brilliant.org/Aperture scan the QR code onscreen, or click on the link in the description. Brilliant’s also given our viewers 20% off an annual Premium subscription, which gives you unlimited daily access to everything on Brilliant.
History is filled with moments that make no sense. Entire groups of seemingly intelligent people making decisions that, in hindsight, just seem plain stupid. Disasters that could’ve been avoided, atrocities that should’ve been unthinkable.
And when we look back, we always ask the same question. What were they thinking? But what if that question is inherently the wrong one to ask? What if they weren’t thinking at all? Or at least, not critically. Because the uncomfortable truth is that critical thinking is not something we permanently have. It’s something we can lose.
00:00 The Death of Critical Thinking
01:32 The Rise of Groupthink
13:45 Social Media
22:47 How to Save Your Mind
Aperture explores the ideas shaping how we think — philosophy, psychology,
and the hidden forces behind human behavior. New perspectives, every week.
─────────────────────────────
LISTEN
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🎙️ Aperture on Spotify: bit.ly/aperturepod
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JOIN THE COMMUNITY
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💬 Discord: discord.gg/nDDVGv2MHp
📸 Instagram:
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SUPPORT APERTURE
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👕 Merch: bit.ly/ApertureMerch
🙏 Patreon: patreon.com/ApertureYT
─────────────────────────────
MORE FROM UNDERKNOWN
─────────────────────────────
🔬 What If – Science Hypotheticals: bit.ly/whatif-show
🆘 How to Survive – Survival Science: bit.ly/how-to-survive-show
─────────────────────────────
📩 Brand partnerships & collaborations: contact@underknown.com
Produced by Underknown: underknown.com
#criticalthinking #mind #brain #thinking #intelligence #psychology #philosophy #technology
To learn for free on Brilliant for a full 30 days, go to brilliant.org/Aperture scan the QR code onscreen, or click on the link in the description. Brilliant’s also given our viewers 20% off an annual Premium subscription, which gives you unlimited daily access to everything on Brilliant.
History is filled with moments that make no sense. Entire groups of seemingly intelligent people making decisions that, in hindsight, just seem plain stupid. Disasters that could’ve been avoided, atrocities that should’ve been unthinkable.
And when we look back, we always ask the same question. What were they thinking? But what if that question is inherently the wrong one to ask? What if they weren’t thinking at all? Or at least, not critically. Because the uncomfortable truth is that critical thinking is not something we permanently have. It’s something we can lose.
00:00 The Death of Critical Thinking
01:32 The Rise of Groupthink
13:45 Social Media
22:47 How to Save Your Mind
Aperture explores the ideas shaping how we think — philosophy, psychology,
and the hidden forces behind human behavior. New perspectives, every week.
─────────────────────────────
LISTEN
─────────────────────────────
🎙️ Aperture on Spotify: bit.ly/aperturepod
─────────────────────────────
JOIN THE COMMUNITY
─────────────────────────────
💬 Discord: discord.gg/nDDVGv2MHp
📸 Instagram:
─────────────────────────────
SUPPORT APERTURE
─────────────────────────────
👕 Merch: bit.ly/ApertureMerch
🙏 Patreon: patreon.com/ApertureYT
─────────────────────────────
MORE FROM UNDERKNOWN
─────────────────────────────
🔬 What If – Science Hypotheticals: bit.ly/whatif-show
🆘 How to Survive – Survival Science: bit.ly/how-to-survive-show
─────────────────────────────
📩 Brand partnerships & collaborations: contact@underknown.com
Produced by Underknown: underknown.com
#criticalthinking #mind #brain #thinking #intelligence #psychology #philosophy #technology
