Today wandering back to the mid-1970s.
The point of no return is a term originally created for airplanes and air travel. It is the point in a journey where you reach the point where you can not go back to where you started, but you also may not be able to make it to your destination.
Before that point, it is the point of safe return or after that, it is the point of no return. That point in the journey when you cannot go back.
I hope you enjoy!!!