Impact versus Longevity

Tom Peters has a mantra: Impact is better than longevity. You can see his most recent post on the subject today here: Built To Last. Built For Impact. The thing is - I agree. But I also think that my definition of impact is very different from that of someone else. I define impact as "Value added per unit time" If one added value to an organisation, society, herself or whatever at one point in time, and didn't do any more, the value added by that person per unit time falls. The others in the organisation see her as not having much impact. So you need to keep working harder, re-imagining the world, finding ways & means and influencing people to execute on your imagination. That's how you have impact.