We will have single pilot cargo ops within 15-20 years if not sooner. My money is on 10-15 years. Single pilot passenger ops will come 10-15 years after the cargo carriers. Single pilot assisted by remote pilot on the ground. The pilot is there to override in case of emergency, computer hack, or loss of contact with ground station. Don’t kid yourselves... it’s coming. And a lot sooner than everybody thinks. I hope I’m wrong.