A lot of startup-minded engineers are younger, fresh out of college with the single goal of excelling in their field. They work and work until one day they fina

A lot of startup-minded engineers are younger, fresh out of college with the single goal of excelling in their field. They work and work until one day they finally get tired of the grind and/or find life and responsibilities outside of work. You also have the workaholics, but that's another issue.