If you can do that with high probability (9 times out of 10?), then yes. All safety critical stuff comes down to high-stakes gambling. One approach that I've

If you can do that with high probability (9 times out of 10?), then yes. All safety critical stuff comes down to high-stakes gambling. One approach that I've seen work well is to estimate the expected number of terrible events per year (which is just the mean time to failure of the system). Things start to be reasonably at about a 0.01 probability per year. (So, we'd expect SpaceX to crash in a populated area once a century. If they launch roughly 100 rockets per year. That means that there has to be a less than a 1 in 10,000 chance that a given rocket crashes and that it kills someone in the process.) (The 0.01 is picked as an example. I have no idea how many zeros the actual FAA regulatory process aims for, or if they go by expected deaths vs. incident rates, etc.)