All Episodes

December 2, 2024 68 mins

Persians. Romans. Chinese. Guptas. Abbasids. Mongols. British.

The list of the world’s largest empires is a list of different peoples of Eurasia. With the sole exception of ancient Egypt, the Eurasian landmass has been the breeding ground for the largest empire of each moment in history.

Why has Eurasia been so prone to large empires? Similarly, why did so many technological breakthroughs — from writing to gunpowder — occur in Eurasia? And how did these broader patterns of Eurasian history enable the dark chapters of European colonialism?

These questions constitute some of the “broadest patterns of history”, to quote Jared Diamond’s Guns, Germs, and Steel. Indeed, these are not only the broad contours of the last few millennia: searching for answers, we need to dig deep into the origins of agriculture and beyond.

My guest today, ⁠Ideen Ali Riahi⁠, has been digging very deep indeed.

Building on Diamond’s original project, Riahi has traced the deepest roots behind Eurasia’s outsized power in human history. And if he is correct, these roots extend to periods way before the dawn of agriculture.

In this episode, we discuss topics such as:

The “Why Eurasia?” questions: What does it mean? What answers do we have? And is this a meaningful question to start with?

Environmental determinism vs environmental realism

Did the activities of our Ice Age ancestors prepare Eurasian lands for farms, cows, and cavalries?

Riahi’s case against genetic explanations of Eurasian dominance and Europe’s rise

As always, we finish with my guest’s reflections on humanity.

You can find links ⁠to academic articles discussed in this episode here.⁠


MORE LINKS

Get the On Humans newsletter at ⁠OnHumans.Substack.com⁠⁠⁠⁠⁠⁠⁠⁠⁠. You can also find On Humans on ⁠YouTube⁠ and ⁠BlueSky!

Feeling generous? Join the wonderful group of my patrons at ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠Patreon.com/OnHumans⁠⁠⁠⁠⁠⁠⁠, ⁠⁠⁠⁠or get in touch for other ways to support!

Email: ⁠⁠makela dot ilari at outlook dot com⁠⁠⁠


MENTIONS

Scholars

Jared Diamond (author of Guns, Germs, and Steel)

Daron Acemoglu ( co-author of Why Nations Fail, guest in episode #26)

Alfred Crosby (author of Ecological Imperialism)

Vernon L Smith

Melinda Zeder & Bruce Smith

Richard Dawkins (author of Selfish Gene)

Oded Galor (author of Journey of Humanity, guest in episodes #12 and #13)

Technical terms

Traditional ecological knowledge (TEK) | Niche construction | herd management | commensal pathway | Modern evolutionary synthesis | extended evolutionary synthesis | niche construction

Keywords

History | social science | comparative economics | comparative history | imperialism | colonialism | technology | ancient civilisations | agricultural revolution | neolithic revolution | human migration | wealth of nations | global inequality | indigenous cultures | epidemics


Mark as Played

Advertise With Us

Popular Podcasts

New Heights with Jason & Travis Kelce

New Heights with Jason & Travis Kelce

Football’s funniest family duo — Jason Kelce of the Philadelphia Eagles and Travis Kelce of the Kansas City Chiefs — team up to provide next-level access to life in the league as it unfolds. The two brothers and Super Bowl champions drop weekly insights about the weekly slate of games and share their INSIDE perspectives on trending NFL news and sports headlines. They also endlessly rag on each other as brothers do, chat the latest in pop culture and welcome some very popular and well-known friends to chat with them. Check out new episodes every Wednesday. Follow New Heights on the Wondery App, YouTube or wherever you get your podcasts. You can listen to new episodes early and ad-free, and get exclusive content on Wondery+. Join Wondery+ in the Wondery App, Apple Podcasts or Spotify. And join our new membership for a unique fan experience by going to the New Heights YouTube channel now!

Dateline NBC

Dateline NBC

Current and classic episodes, featuring compelling true-crime mysteries, powerful documentaries and in-depth investigations. Follow now to get the latest episodes of Dateline NBC completely free, or subscribe to Dateline Premium for ad-free listening and exclusive bonus content: DatelinePremium.com

On Purpose with Jay Shetty

On Purpose with Jay Shetty

I’m Jay Shetty host of On Purpose the worlds #1 Mental Health podcast and I’m so grateful you found us. I started this podcast 5 years ago to invite you into conversations and workshops that are designed to help make you happier, healthier and more healed. I believe that when you (yes you) feel seen, heard and understood you’re able to deal with relationship struggles, work challenges and life’s ups and downs with more ease and grace. I interview experts, celebrities, thought leaders and athletes so that we can grow our mindset, build better habits and uncover a side of them we’ve never seen before. New episodes every Monday and Friday. Your support means the world to me and I don’t take it for granted — click the follow button and leave a review to help us spread the love with On Purpose. I can’t wait for you to listen to your first or 500th episode!

Music, radio and podcasts, all free. Listen online or download the iHeart App.

Connect

© 2025 iHeartMedia, Inc.