microtrends
Most of the (planning) blogosphere prides itself on knowing about trends. But how long does a trend have to be around or far foes it have to spread before it's influence has a knock on effect in other places?
Complexity theory suggests that small things can have a big influence without us even knowing. This is exactly what pollster and Burston-Marsteller CEO Mark Penn suggests in his new book . Penn was Bill Clinton's pollster in the 1992 presidential election and the man responsible for the phrase "soccer mom".
You can hear Penn talking a little more about this in this interview . Although the trends he talks about are a little dated, he makes the valid point that if 1% of the population are doing something, that this is already 3M people - enough to have changed the outcome of the last US presidential election.

