Earth to Purdue Exponent editorial board: It ain't gonna happen:
Indiana should work with SAFER to adopt a legal limit for marijuana possession. The proposed limit is "... making legal the possession of one ounce or less of marijuana for any person 21 years of age or older."
Since Indiana has a legal limit for alcohol, .08 blood alcohol content, it should also adopt a legal limit for a drug that is statistically less harmful short-term.
I, too, live in an ivory tower, but it's not so tall that I can't see the ground. As a service to readers, though, here's a map of state marijuana laws, so you can plan your "marijuana without jail time" trip. Or you could just follow the Willie Nelson tour bus.