The changes highlight the immense challenge for Facebook, as it tries to shore up its stock price while satisfying all the players of its ecosystem: its users, developers and advertisers.

WSJ: Facebook Unveils Sweeping Changes to News Feed

Moreover, very large and complex economies are characterized by immense inertia, which means that changes of any nature require a very, very long time to effect.

FORBES: America in Danger of Collapse?

Though the sometimes indolent ways of the British upper classes served as his muse, his writing gave the impression that he embraced the immense, and in a very real sense, the anti-conservative changes wrought by Thatcherism.

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