I think the drive to do something like this will not be with you forever. Once you are in your thirties you will probably want to prioritize your (potential) fa

I think the drive to do something like this will not be with you forever. Once you are in your thirties you will probably want to prioritize your (potential) family life and will not have time or inclination or freedom to pour yourself into a start-up. So if you have no current commitments/responsibilities outside work, and there's a good job market for your skills to fall back on later, I suppose it's now or never. Even if it fails I'm sure you'd learn a lot.