My partner is too obsessed to pay the bills. What can I do?

A little back ground: My partner and I have been together for 3 years. He is a self employed attorney and I have quit work to go back to school full time, so we are completely dependent on his income. For at least a year he's been overly obsessed with figuring out physics, but it's only getting worst. He's a very smart guy and graduated from Columbia Law in the top of his class, but his background is in International Relations and Strategic Studies - not math or science.Basically we've come to a point where he will spend around 40 hours a week on physics (if not more). He think's he has figured out how to unify the 4 forces and how everything works, but I doubt it. Right now rent isn't paid and if it isn't paid in less than three days the eviction process begins. We're basically living off credit cards. I'm worried I'm going to have to abandon my education and this relationship to avoid being broke and homeless.I'm not sure what I can do to get him on track. His Plan B is to sell his retirement stocks to make ends meet in the mean time until "[He is] published, has changed the world, and we are rich and famous." What do I do? How can I get him to focus on making sure we have money for rent and food? Do I give up on finishing my degree? Do I move back to my parents in another state?I feel trapped in a very uncomfortable position.