Notes 0 Notes 1

- Thomas Sowell and other historians argue that originally sub-Saharan Africa didn't develop the kind of trade, urbanisation and technology that China and Western Europe had because of a serious lack of navigable waterways, sea harbors and overland communication. Also, that North-America has all of those in abundance (in fact, more than anywhere else in the world), but could only develop them after the introduction of animals for transportation and agriculture, and the cumulative knowledge of the Eurasian continent. So yeah, as with so many things, a matter of (bad) luck.

- the Airbus A380 can accommodate more than 500 passengers and is as such a token of our ability as humans at great engineering. However, the number 13 has been deleted from the row of seats because it is "bad luck". source

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