As we all know, some of the best ideas come when they are least expected. For me, the epiphany came just as I turned into my driveway; how fortunate that I was moving very slowly at that point, as it was a bobby dazzler of a thought. Insight often comes through one of three routes: aggregation, extrapolation or conversation (for the record the last is often the most useful but the most risky, due to its anecdotal nature).