[ChuckMcM]

Well for marketing people it can mean '2' and for technical people it does often mean '10'. But it gets also lumped into people who use the term "exponential" growth.

As Gabe points out, decimal orders of magnitude are good sign posts because they often separate the space into meaningful chunks, what ever it is.

Think about your own earning potential, the differences between earning $100/month, $1000/month, $10,000/month and $100,000 a month. Those are very different places to be.