If the premise that humans are fallable and the weak link... aren’t humans the one programming Hal? Ergo isn’t Hal susceptible to the same human failings? Only now there isn’t another layer in the cockpit to protect Hal’s mistakes or shortcomings.

Oh by the way, there’s no such thing as a hack proof network... so the idea of remote control goes out the window.

The next argument is for single pilot ops? We went from four engines, to three to two for the same reasons we went from four pilots to two... automation and technological advances, gains in efficiency. Why don’t we have single engine airliners?