People- the advancement of technology is exponential. The new technology we see 10 years from now will be orders of magnitude more advanced than the technology we have now.
Technology will advance at a faster rate over the next 10 years than it has over the past 20, and then even faster than that over the following 5 years.
It's not a question of how fast it will take to make it technologically possible. It's a question of how slow companies and the FAA will be at facilitating it.