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Lumifer comments on Crazy Ideas Thread, Aug. 2015 - Less Wrong Discussion

7 Post author: polymathwannabe 11 August 2015 01:24PM

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Comment author: Lumifer 11 August 2015 04:39:00PM *  10 points [-]

A quick Google, and...

The Grand Canal (also known as the Beijing-Hangzhou Grand Canal) ... is the longest canal or artificial river in the world ... linking the Yellow River and Yangtze River. The oldest parts of the canal date back to the 5th century BC, although the various sections were finally combined during the Sui dynasty (581–618 AD). The total length of the Grand Canal is 1,776 km (1,104 mi).

I am also not sure why you think the technology is difficult. You just dig. The traditional "technology" is slave labour.

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