The actual content of the business plan hews to a logical structure straight out of the Principia Mathematica . Lesser entrepreneurs purchase business-plan-writing software: packages of boilerplate text and spread sheets, craftily linked together so that you need only go through and fill in a few blanks. Avi and Beryl have written enough business plans between the two of them that they can smash them out from brute memory. Avi’s business plans tend to go something like this: