I develop software for a drive-by-wire system for impaired people. Drive-by-wire is not a complex thing (specially compared to a jet) and for impaired people th

I develop software for a drive-by-wire system for impaired people. Drive-by-wire is not a complex thing (specially compared to a jet) and for impaired people the safety regulations are a little bit lower. The first non-secure prototype with no safety features was done in some months. After that it needed several years of talking with the regulatory body and making prototypes until we were able to sell the first device. So I think that a lot of this 20 years are needed for a this regulatory stuff.