But beating the market is an incredibly difficult trick to sustain.

但是要持续跑赢大市却是一件极其艰难的工作。

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And this time Best Buy accomplishes the more difficult trick, answering those questions quickly and definitively.

FORBES: Super Bowl Ad Fail: Best Buy Does Have Answers

It would be a difficult trick to pull off, for sure, but one that might well be worth attempting.

FORBES: Should Barnes and Noble Break Up? Float Off the Nook To Compete With Amazon and Apple?

The more difficult trick will be replicating the experiment in people, but Dr Courtine hopes this will be possible within a year or two.

ECONOMIST: An experiment on rats brings hope to the paralysed