How would you make a decision in this case?
I would interview potential customers and ask if the problem your idea solves, is a problem they resonate with. Then you ask them how badly they would like to solve the problem. Once you find out that actual human beings are interested in you solving a problem they badly need solved, it will strongly motivate you to levels you might have never reached before.
The biggest challenge though is talking to actual human beings because some of them might not be the right customers for you and if the probability distribution is such that you happen to talk to a lot of these at the beginning, you might be badly demotivated.
— What do you want?
Unless you’re at least 1% clear about it, there’s nothing to decide actually.