Gary Weiss

If you think Wall Street has a short memory, you're dead wrong. No, the folks who work on Wall Street, regulate Wall Street - and, above all, invest in its wares, notably its hedge funds - don't have a bad memory. They don't have any memory at all.

A health system that lacks commodities for managing high-mortality infectious diseases and the main killers of mothers and young children will not have an adequate impact. By the same token, even the best-stocked delivery system will have an inadequate impact if it fails to reach the poor.

Dealers always like to sell chairs in sets of four, six, or eight. And they charge a premium for supplying the whole set. Individual chairs, though, go for much lower prices, and if you carry around a reference photo of the chairs you want, you may be able to build up a cut-price collection, chair by chair.

The historical novelist has to consider what has actually happened, while the SF writer is dealing in possibilities, but they are both in the business of imagining a world unlike our own and yet connected to it.