The author spends a lot of time talking about precision and seems surprised that people think astrophysics is imprecise. Much of astrophysics is imprecise, and

The author spends a lot of time talking about precision and seems surprised that people think astrophysics is imprecise. Much of astrophysics is imprecise, and one result builds upon another to that imprcision propagates. Of course the redeeming quality of astrophysics is that many of the uncertanties are easy to quantify, so at least we can say how well we know what we know.