I've often wondered if and when they isolate the genes for each trait, if they won't find it impossible to separate certain desirable effects from the undesirable ones; the creative from the schizophrenic, for example. That's certainly not an excuse but only an observation. When I take Prozac, I'm a much nicer person to be around, but don't feel the emotional highs and lows that so impelled me to create, in the past. This is probably a much-argued question. Would Van Gogh have painted that way, if he'd had access to the anti-depressants and anti-psychotics that are available today?