Re: 1950's redux
Chuck Northrop was a serious flying wing enthusiast. Unfortunately he never really cracked the stability problem.
Fly-by-wire solves this and the most recent large-scale look in that direction was the Airbus A380, as it was originally proposed to be a flying wing. This would have only required three engines, carried more passengers and had a shorter wingspan. A win all round.
What scotched this approach was the lack of a "side" to attach a jetway to when the thing's on stand.