Despite their large numbers (estimates vary between 15m to 20m) little is known about the Alevis and they are often confused with the Alawites in Syria.

ECONOMIST: Turkish politics

Despite the large numbers of rooms opening in coming years, "there is no worry this will lead to an oversupply, " says Chiheb Ben Mahmoud, executive vice president at Jones Lang LaSalle Hotels EMEA in Dubai.

WSJ: Dubai's New Boom Is Hotel Rooms

Visa and Mastercard are fortresses, growing 20% per year like clockwork, despite the law of large numbers.

FORBES: Tokenization And The Collapse Of The Credit Card Payment Model