The Edge is revealing itself far more to be a forum in which people of provenance hold forth on that which they've no particular qualifications or grounds to discuss (something which never happens elsewhere on the Internet, of course ).
Complex, highly-interdependent systems exibit fragility, nonlinear transitions, and multiple optima, some not reachable, some local and highly persistent but undesirable.
Tossing up ones hands and declaring that all shall be as God / Allah / The Great Spirit / FSM wills it abandons all sense of agency.
The prospects of a global collapse of systems concerns a great many people, and for much the reason AI would: the mechanisms, logic, interactions, limits, and consequences aren't clear. See David Korowicz's "Trade-Off".
http://www.feasta.org/2012/06/17/trade-off-financial-system-...
As for technological unemployment, that's been a consideration for over 200 years. You'll find strong treatments from J.S. Mill, and commentary from Abraham Lincoln.
Some modern sources, referencing those:
Technology in Society
1984, Vol.6(4):263–284, doi:10.1016/0160-791X(84)90022-8 "High technology and job loss", Russell W. Rumberger http://31.184.194.81/10.1016/0160-791X(84)90022-8
Robert Struble Jr, (1993) "Towards a Structural Solution to Unemployment", International Journal of Social Economics, Vol. 20 Iss: 11, pp.15 - 26
http://31.184.194.81/http://dx.doi.org/10.1108/0306829931004...