Essential video portal focusing on human nature, promoting healthy skepticism, critical thinking and reason.

ILLUSION / PARADOX


Quirkology: Assumptions

Quirkology: Assumptions

[0:43] A cluster of optical illusions presented by psychologist Richard Wiseman. [Source: Quirkology YouTube lin…

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Zeno's Dichotomy Paradox

Zeno’s Dichotomy Paradox

[4:11] Can you ever travel from one place to another? Ancient Greek philosopher Zeno of Elea gave a convincing argument …

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Flashed Face Distortion Effect

Flashed Face Distortion Effect

[3:50] FREE WILL? … PLEASE TAKE PART IN THIS FUN 1 MINUTE EXPERIMENT. 😀 (follow the simple instructions)   Okay…

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Checker board shade illusion

Checker board shade illusion

[1:17] Professor Edward H Adelson produced this excellent optical illusion in 1995. Two areas highlighted in the clip …

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