Only fragile jobs are lost during technological upheavals (See Taleb, Anti-fragility).
Farming is a fragile profession? It's been around for thousands of years!
If you are able to live cheaply, and learn a lot doing something risky, you are being anti-fragile.
http://www.youtube.com/watch?feature=player_embedded&v=e...
Having watched the first few minutes of the above, I think he means his "antifragility" to be an attribute of economic and political systems, not of individual jobs or even whole occupations. E.g., he says that, in order for the restaurant business to be at least robust and maybe even antifragile, individual restaurants must be allowed to be fragile. It gets more interesting when he turns to the banking business ...