hexayurt

Although large numbers of very hungry people (that's a euphamism for cannibals...) make a pretty good proxy. http://en.wikipedia.org/wiki/Nazino_affair (shudders)

Depends a lot on what you intent to grow: ploughs, seed drills, some of the no-till methods. Actually building biosand filters and using them is no bad thing either!

Out of the way of particularly nasty disease vectors (malaria), and remember the world will probably get a bit colder as reforestation takes up carbon - this can happen fast, I recall reading it happened during the plagues that swept North America after the Europeans arrived. Sites of old civilizations (Rome?) might be particularly good... if it worked the first time, you know?

As a general way of designing these things, try http://resiliencemaps.org - take the contents of your bag, and draw the chart, once for three days, three weeks, and three months. That gives a pretty sharp sense of what's included... and what's missing.

Hi guys! (Vinay here - we met at Imogen's barn party etc.)

Firstly, congratulations on the book. Secondly, how do you think blockchain scaling is going to affect people's perceptions of what the blockchain is - is blockchain just a step on the way to something much, much bigger?