Vsauce2
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vsauce 2
kevin lieber
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featuring Neil DeGrasse Tyson
Do you really know anything?
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science for kids
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startalk radio
star talk
the limits of knowledge
the gettier problem
gettier problem
gettier problem explained
gettier problem examples
philosophy
epistemology
justified true belief
vsauce2 neil degrasse tyson
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