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I think they meant a more vague definition software. Amazon isn't really a software company, but it used it to change distribution and squeeze inefficiencies out of the system. Same with Google and advertising. No one really knows what the ROI for a TV spot is, but every Adwords bidder knows their keywords' ROI, and if Adwords claimed TV dollars, that squeezed out inefficiency.

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Sure, but this didn’t prevent recessions in 2001 and 2007; in fact, efficiency improvements have been occurring since the dawn of civilization. It’s not a lack of efficiency that causes recessions, it is over-expansion mediated by greed.

Yes, and we see this in disproportionate demand for software developers, and also in envy/resentment towards tech workers, who have benefitted the most in the recovery.

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