In the health care debate, liberals are fond of citing polls that show, they say, that people like individual aspects of Obamacare, but do not like the package as a whole. They conclude that voters are behaving irrationally, because if all the parts are good than obviously the whole must be good. From this line of reasoning, they deduce that if Congress passes Obamacare, then people will realize they really liked it all along. Alas, the logical premise is false. There are valid reasons why one might like the parts, but not like the whole.