The current market ecosystem is not sustainable, and significant changes are coming one way or another.
We only need to walk or bike ten percent of the time to make a significant change in society. That is just two days of walking, bicycling or taking transit per month for a typical commuter.
Business has to change the way it does business, or we will make no significant changes in the way we relate to the earth.
A revolution simply means great change, significant change, and that's how I'm defining it - great change for the better, brought about through non-violent means.
Always look for these changing technology factors- any market that has a significant change in the underlying raw materials ...or enabling factors, is an environment that is about to change in a very significant way.