He went from the top of the world, to upset, to sleepless, to manic, to gone.

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And if I were an executive at Blackberry or Nokia who had sneaked into the Huawei event at Mobile World Congress, I might have sleepless nights about the threat to my business from the fast-growing Chinese company.

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Diamandis also made the essential point too often ignored by those in the commentariat who profess to suffer sleepless nights over the haves and have nots of the world.

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