Proto-Indo-European: The Mother of All Languages | Future IQ
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Jun 19, 2026
Description
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Five thousand years ago, a language was spoken that left behind no books, no inscriptions, and no recordings. No one remembers what it sounded like. Yet today, linguists can reconstruct thousands of its words, identify its grammar, and trace how it evolved into Sanskrit, Persian, Greek, Latin, Hindi, Marathi, English, and many other languages.
This lost language is called Proto-Indo-European, and its discovery is one of the most remarkable achievements in modern science. The story is not based on mythology or speculation, but on a detective-like process that compares languages across continents, uncovers hidden patterns, and works backwards through time. By studying how sounds change in predictable ways, researchers have reconstructed an entire linguistic family tree stretching back thousands of years.
The most fascinating part is that these reconstructions make testable predictions. In some cases, linguists predicted the existence of sounds in an ancient language decades before archaeological discoveries proved them right. It is a rare example of history, language, archaeology, and science coming together to reveal a world that vanished long before the first written records. If language is humanity's oldest technology, then Proto-Indo-European may be one of the greatest lost inventions ever rediscovered.
Videos you may like / referenced in today’s episode:
Aryan Migration Theory DNA Analysis: https://youtu.be/9AxXwYGgWK4
Why Sanskrit is Amazing & Mother of All?: https://youtu.be/xASDr0nuIf4
Sanskrit vs Tamil - Which is Oldest?: https://youtu.be/GvVcgwxQImY
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@ngkabra http://twitter.com/ngkabra
@shrikant https://twitter.com/shrikant
Chapters:
00:00 Introduction
03:18 What is Proto Indo European?
04:34 What is The Science behind Proto Indo European
06:57 What are the rules?
09:27 Sub-Rules
13:12 Impact of Other Languages
16:48 Second Sub-Rule
18:00 More Examples of Sa - Ha Rule
19:57 Timeline of these languages
21:45 How are we so sure about the timeline?
23:48 More Languages
25:42 Scientific proof for all the rules
29:55 Summary
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Source / References:
1. See https://navin.smritiweb.com/static/pie.html for a full set of links and a detailed fact-check.
2. RobWords on “The History of English” - https://www.youtube.com/watch?v=0gHE9blt0mQ
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Transcript
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