Some of the words I dread most in a meeting are: 'What if ?' They're fine in the present tense of 'What if a user tries this option?' or 'What if the database read fails mid flight?', but as soon as the future tense is introduced I begin to worry. 'What if the database and middleware changes?' or 'What if sometime soon we don't just have to run on PCs but need to work on mobile phones?' There is