Chance of being forgiven $450K in student loans with IBR?

Are federal loans grandfathered in? I plan on borrowing $350K, in loans, and I calculated that if I start IBR during residency, maybe take a year off to do MSF, and work as a physician at a hospital that gives 8 weeks PTO a year (I'll be willing to take a lower salary or work in a public university hospital. Lifestyle>>Salary), I will probably still OWE the government $450K. I will only owe $100K of taxes on the $450K, which I plan on either saving up for over 25 years or maybe working with... Chance of being forgiven $450K in student loans with IBR?
Source: Student Doctor Network - Category: Universities & Medical Training Authors: Tags: Medical Students - MD Source Type: forums