dr. tully? more drugs that do more specific things-- the anti-shyness drug, the happy drug, the get-rid- of-your-depression- in-the-morning drug, the don't-worry- about-the-alcohol- you-had-last-night drug. i mean, you can imagine lots of different things becoming somewhat tailored to particular issues that we deal with with our brain and body every day. gazzaniga: here's a real possible drug that's right on the cusp. and it's the drug that will selectively erase a memory. - so let's say you didn't like the year 1961. - ( laughter ) right? you just want that out of your life, or one guy put it to a colleague of mine, "i'm trying to forget my ex-wife," you know, call her name up and take the drug and boom-- delete character. now this is being worked on-- that's actually within the realm of feasibility from what we understand. that touches on some deep questions of what it means to have a life experience. you might meet her and marry her again. i mean, jeez. ( laughter ) or you might not propose t