You could save up enough money to the point which you're comfortable not accruing more wealth for the time you think it takes to prove the startup out prior to

You could save up enough money to the point which you're comfortable not accruing more wealth for the time you think it takes to prove the startup out prior to funding. Finding partners who can do the same can accelerate the time to an MVP. Also, it's possible to start something on the side while keeping your day job.