I guess this would depend on (1) the extent to which unnecessary sympathy effects my daily life and (2) how the consideration of hypothetical events would effect the evolution of my moral system with respect to this new constraint.
The former is negligible to me, but the latter seems potentially dangerous. I don't know exactly how not being a psychopath effects my reasoning, so I don't think I would be comfortable taking the pill. Maybe if I could backup my mind...
I figure morality as a topic is popular enough and important enough and related-to-rationality enough to deserve its own thread.
Questions, comments, rants, links, whatever are all welcome. If you're like me you've probably been aching to share your ten paragraph take on meta-ethics or whatever for about three uncountable eons now. Here's your chance.
I recommend reading Wikipedia's article on meta-ethics before jumping into the fray, if only to get familiar with the standard terminology. The standard terminology is often abused. This makes some people sad. Please don't make those people sad.