The impact of an idea is like the strike of an earth-quake, and I think we should have a “Richter scale” of magnitude for potential impact of ideas to compare them.
In a world, which is moving exponentially [1], it is important to have the right scale to look at innovation — a scale suitable to our linear thinking.

I think, just like the Richter scale, the scale measuring the impact of innovations should be logarithmic, and hence — the logarithmic thinking.

[1] http://www.kurzweilai.net/the-law-of-accelerating-returns