Some of you may already be aware of this; it's an interesting 20 minutes.
https://www.youtube.com/watch?v=WqBV9oW2w4I

Jonathan
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J. Silk
Leiden University
Leiden University Institute for Area Studies, LIAS
Matthias de Vrieshof 3, Room 0.05b
2311 BZ Leiden
The Netherlands

copies of my publications may be found at