I'm not a software engineer or computer scientist. My sole coding experience was a year of highschool Pascal a long time ago. So - to the developers here - what can you tell us about how departures/new hires affect or do not affect a large group project such as increasing the capabilities of autopilot? When a person leaves do they take institutional knowledge with them and reduce the knowledge of the remaining team? Is progress meticulously documented so that new researchers can pick up where others left off? Do new team members perhaps bring new ideas and k crease the rate of progress? Does efficiency take a hit while the team newbie integrates with the rest?