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Lex Fridman Podcast #489 · January 13, 2026 · 3h 30m

Uncontacted Tribes in the Amazon Jungle

Paul Rosolie returns — now on his SECOND podcast in our system (JRE #2440). The Amazon's uncontacted tribes, the ethics of contact, and what we lose when the last indigenous cultures disappear. Rosolie buys and protects rainforest directly.

This summary was generated from show notes and public descriptions, not from a full transcript review. Details may contain inaccuracies.

Highlights

Uncontacted tribes as humanity's control group
Rosolie: uncontacted tribes are the last humans living as all humans once did. When they disappear, we lose our control group for what 'natural' human life looks like.
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