一般注記Prologue : when ideas have sex -- A better today : the unprecedented present -- The collective brain : exchange and specialisation after 200,000 years ago -- The manufacture of virtue : barter, trust, and rules after 50,000 years ago -- The feeding of the nine billion : farming after 10,000 years ago -- The triumph of cities : trade after 5,000 years ago -- Escaping Malthus's trap : population after 1200 -- The release of slaves : energy after 1700 -- The invention of invention : increasing returns after 1800 -- Turning points : pessimism after 1900 -- The two great pessimisms of today : Africa and climate after 2010 -- The catallaxy : rational optimism about 2100.