This book is a winning combination of being both important and easy to read. It's important because it raises issues that lawmakers, policy makers, industry and prospective customers must all address, namely, what is our appetite for risk in space travel? The book starts with inspiring stories, many of which we are already familiar with, but when Simberg offers them as contrast to society's aversion to risk, it shows starkly how much we've changed since setting sail in wooden boats and facing a hostile continent.
After showing the pitfalls of demanding perfect safety (which would mean we shouldn't get out of bed in the morning, much less launch rockets), Simberg raises an important issue that needs to be part of the public discussion. When the nation thought space was important, we were willing to take risks. All modes of transport carry risks, but we accept those risks because we need to get places. So, he asks, why do we need to go to space? He argues that the settlement of space is reason enough. The Commercial Space Launch Act would appear to support his thesis. There, Congress said "the goal of safely opening space to the American people and their private commercial, scientific, and cultural enterprises should guide Federal space investments, policies, and regulations."
Finally, the writing is smooth, the explanations clear, and the arguments cogent. It's a quick read, and I highly recommend it.