by kdeclark Sun Sep 18, 2011 12:52 am
Lately I've been having a real problem with LSAC's necessary assumption questions. I think their "necessary" assumptions aren't necessary at all, unless you build in assumptions which are normally out of bounds for other sorts of questions. If there is some system to it, the I don't get it.
Maybe somebody can help me with this one?
So the Urbanists, per lines 21-24, believe that suburbs cause de facto economic segregation. Answer A is the necessary assumption.
Question: Why is it necessary for these Urbanists to assume that, as A says, most of those who buy houses in suburbs don't spend drastically less than they can afford?
I can see why that would be the case if the poorest people could afford to live there, and then the rich people bought below their income level to live there too? That would be just the opposite of what the Urbanists claim, and so, if we assume that, then I agree that A is a necessary assumption.
However, who says we're allowed to assume that? If anything, shouldn't we assume that, as the Urbanists seem to think, the suburbs ain't cheap. Isn't the problem precisely that poor people can't live there too. So, given this fact, what would it look like were we to negate A?
Well, we'd have a situation in which two sorts of people lived in the suburbs: the wealthy, and the very wealthy. The very wealthy would have paid drastically less than they could afford. The wealthy would have paid what they could afford, and no less.
The question is, does this ruin the Urbanists argument about economic segregation. (This is just the "negation test.") I don't see how it could. If the sort of "economic segregation" that concerns the Urbanists is the lack of access wealthy kids have to the very wealthy, then sure. But obviously that is not what they're worried about. They're worried about the poor and the rich (and everyone in between) interacting. I don't see how the wealthy and the very wealthy living together would create the sort of diversity the Urbanists want to create, and thus, destroy their argument. Not, at least, unless you assume that the poor can live in the suburbs too. And that isn't what they suggest at all.
Am I missing something obvious? How should I go about selecting a necessary assumption answer when the assumption just isn't necessary? (This goes for LR questions too.)
Any help would be much appreciated. I keep running into this problem, and it's killing me. I feel like I'm doing all of the nitty-gritty reasoning the LSAT wants me to do, and then it's punishing me for it. Not fair, LSAT! Not fair.