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Rapid Brain Growth

By Michael Alan Prestwood

Thu 8 Jul 2021
Published 5 years ago.
Updated 2 years ago.
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Rapid Brain Growth

800,000 BCE
800,000 to 200,000 BCE

Genus Homo: Rapid brain growth in our human ancestors started about 800,000 BCE. Now, by rapid brain growth we mean about 600,000 years! Larger complex brains helped early humans to survive. They interacted with each other and their surroundings in new and different ways.

Primary Timeline…

— map / TST —

Michael Alan Prestwood
Author & Natural Philosopher
Prestwood writes on science-first philosophy, with particular attention to the convergence of disciplines. Drawing on his TST Framework, his work emphasizes rational inquiry grounded in empirical observation while engaging questions at the edges of established knowledge. With TouchstoneTruth positioned as a living touchstone, this work aims to contribute reliable, evolving analysis in an emerging AI era where the credibility of information is increasingly contested.
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This Week @ TST
April 1, 2026
»Column Archive
WWB Research….
1. Story of the Week
The Dawn of Empirical Spirituality
2. Quote of the Week
“It is wrong always, everywhere, and for anyone, to believe anything upon insufficient evidence.”
3. Science FAQ »
Is science tainted by bias?
4. Philosophy FAQ »
How do knowledge frameworks help transform information into wisdom?
5. Critical Thinking FAQ »
Are personal spiritual experiences believable?
6. History FAQ!
Did the Buddha believe in Mount Meru and the six realms of existence?
Bonus Deep-Dive Article
TST Theory of Justification: What to Believe
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