The laws of physics in the offspring might differ slightly, and at random, from the parent - so universes might evolve, suggests Lee Smolin of the Perimeter Institute in Waterloo, Canada.

后代宇宙的物理规律可能会同前一代的宇宙稍有不同，并有随机性——所以说宇宙可能是在不断进化的。

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Mr Lee is emigrating to Canada.

李先生要移居加拿大了。

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Dreams of dominance in Canada temporarily crushed, Lee-Chin turned his eyes south.

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They grew up in suburban Canada, where guitarist Alex Lifeson and bassist and singer Geddy Lee were both first-generation Canadians from immigrant families, doing the best they could to avoid being the target of bullies.

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Lee left IV earlier this year and now lives in Vancouver, Canada.

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