Re: Re: Re: What is the single most important invention that shaped the last mil

Here is one of the best responses to a slightly larger time frame from Freeman Dyson - "The most important invention of the last two thousand years was hay. In the classical world of Greece and Rome and in all earlier times, there was no hay. Civilization could exist only in warm climates where horses could stay alive through the winter by grazing. Without grass in winter you could not have horses, and without horses you could not have urban civilization. Some time during the so-called dark ages, some unknown genius invented hay, forests were turned into meadows, hay was reaped and stored, and civilization moved north over the Alps. So hay gave birth to Vienna and Paris and London and Berlin, and later to Moscow and New York." He wrote this on EDGE at the turn of the millennium - now that is some thinking really!

Compelling speakers do these 4 things every single time

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Former U.S. President Barack Obama speaks during a Democratic Congressional Campaign Committee rally at the Anaheim Convention Center on September 8, 2018 in Anaheim, California. (Photo by Barbara Davidson/Getty Images)
Personal Growth

The ability to communicate effectively can make or break a person's assessment of your intelligence, competence, and authenticity.

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The results come from a 15-year study that used ultrasound scans to track blood vessels in middle-aged adults starting in 2002.

Mikhail Kalinin via Wikipedia
Mind & Brain
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Big Think Books

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