Khan Academy on a Stick

Random predictions for 2060

Sal's random predictions for the year 2060

Humanity on earth

Human evolution overview
Understanding calendar notation
Correction calendar notation
Development of agriculture and writing
Firestick farming
Collective learning
Thomas malthus and population growth
Land productivity limiting human population
Energy inputs for tilling a hectare of land
Random predictions for 2060

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This collection was created November 2014.