Black-Swan Proofing, Useless Business Plans

Gleaned from the twittersphere:

• FT.com / Comment / Opinion - Ten principles for a Black Swan-proof world. Man some good common sense in here.
• Business plans a waste of time. Sounds like your typical entrepreneur would be far better off meeting people and networking than spending time on a plan.  There is probably some minimum level of plan worth getting to, and then after that it is not clear