Let's not forget that it's not just the airplanes that need to be capable, but the entire aviation infrastructure around the world will need to be upgraded. ATC will need to be able to effectively take some of the workload off of the single pilot or assume all of the workload if that single pilot is incapable for whatever reason. Traditional aircraft will need to be upgraded in order to participate with new "see and avoid" systems that will be necessary on the newly designed airplanes. Airlines pursuing this technology will undoubtedly need to hire more dispatchers to effectively monitor and provide support for the overloaded single pilots in the air. Communications, navigation, and datalink systems need to be 100% reliable and 100% secure. They will need to work perfectly in the face of hacking, jamming, 100 year solar storms, minimally trained third world operators, earthquakes, hurricanes, etc. Airports themselves will need to be extensively modified before anything like autonomous operations can take place on them. All of this and more will take time and, more importantly, lots and lots of money. Is it likely to happen eventually? Probably. Is that someday in our generation's ot even the next generation's future? Everyone's entitled to their own opinions, but given the hurdles and the costs, I don't think so. It'll be a long time before the cost of making single pilot/ autonomous ops feasible is lower than just continuing to pay pilots, distasteful as that is to airline management types.