11. Acknowledgements
This paper was improved by conversations with a large number of people
who helped debug it. Particular thanks to Jeff Dutky
<dutky@wam.umd.edu>, who suggested the ``debugging is
parallelizable'' formulation, and helped develop the analysis that
proceeds from it. Also to Nancy Lebovitz
<nancyl@universe.digex.net> for her suggestion that I emulate
Weinberg by quoting Kropotkin. Perceptive criticisms also came from
Joan Eslinger <wombat@kilimanjaro.engr.sgi.com> and Marty Franz
<marty@net-link.net> of the General Technics list. I'm grateful
to the members of PLUG, the Philadelphia Linux User's group, for
providing the first test audience for the first public version of this
paper. Finally, Linus Torvalds's comments were helpful and his early
endorsement very encouraging.