然而，拉多里脚印脚跟和脚趾的深度提供了有效步行的一瞬间，它“远在我们自己的Homo人类属出现之前，”蒋格斯说道。

Still, heel and toe depths at Laetoli provide a glimpse of efficient walking “long before the emergence of our own genus, Homo, ” Jungers says.

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他以“成功就在似非而是的境界中”为题，在一张纸上开始描绘那时的头脑一瞬间的灵感，他问自己“在什么时候小键盘会比大键盘更有效？”

In a paper he drafted on the spur of the moment, entitled “Success Lies in Paradox”, he asked, “When is a tiny keyboard more efficient than a large one?”

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这样的结果不能靠瞬间达成，但确实是愉快而又有效的办法来减少推杆总数。

The results are not instantaneous, but this is a pleasantly efficient way of decreasing students' putts per round.

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