As a result, so the theory goes, the Ice Age animals that depended on plant diversity couldn't survive.

结果，根据这个理论，依赖植物多样性的冰河时代动物无法生存。

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In the internet age, at least in theory, this fraction can be much reduced.

在互联网时代，至少在理论上，这个比例可以大大降低。

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More cynical experimenters say that the golden age of theory is over, now that the days of freewheeling mathematical carousing are drawing to a close.

ECONOMIST: Planck-scale physics

The theory brings to mind New Age crankery, and some of the research Mr Flannery cites to underpin it is speculative at best.

ECONOMIST: An Australian scientist explores where we are now

"Marketing theory isn't affected by age bias, but marketers themselves are, " Stroud writes, blaming the bias on a marketing industry population that skews under 35 on the lack of an institutional commitment to break out of a comfort zone.

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