let's put the use of doubling cube into the normal language, we would use without using a physical cube ...
"Hey dude, we are playing now for some time (any gamefor example) and I feel like having some advantage over you. We agreed to play to 5 wins but we have no time to sit another hour and play this "lost" game for you. Would you agree to give me 1 point immediately or continue to play for 2 points, which you can still win (God be with you)
or even play for 4 points if I fail to lead this game ...
What do you think, dude ? "
***
OK, this is the working of a doubling cube. It's just a tool that revived backgammon back in 30-ties last century ... I can give you, in any kind of game, an example of situation that doubling cube could be used ... in any game ... no exception.
Andy.