It is commonly believed that traditional companies and services get disrupted because they are inefficient and costly.

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It is commonly believed that the big SMS network effect kicked in when about 20% of mobile phone users began texting each other in certain European countries in mid-Nineties.

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It is commonly believed that they first appeared in religious seminaries - mostly paid for by money from Saudi Arabia - which preached a hard line from of Sunni Islam.

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It's commonly believed that Beijing feels it is safer to have North Korea on its border than U.S. ally South Korea, Jang said.

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It turns out that things are changing less than is commonly believed.

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