[kelnos]

We have expensive drugs that make people less hungry, and essentially require they take them for the rest of their lives. We also don't really know the long-term effects of these drugs when used for this purpose. (Using them for diabetes is different.)

We do not have computers that think. And what we do have, if improved further, is likely to cause severe labor disruption, which could lead to mass riots and civil war if we're not careful. (And since when have we been careful?)