While that's certainly true, the distribution of asteroids by size [1] suggests that increasing size by that much decreases the probability proportionally? [1]

While that's certainly true, the distribution of asteroids by size [1] suggests that increasing size by that much decreases the probability proportionally? [1] http://www.aanda.org/articles/aa/full/2007/18/aa6046-06/img207.gif http://www.aanda.org/articles/aa/full/2007/18/aa6046-06/img2...