Cory Doctorow Cold Equations and Moral Hazard

This is an interesting article by Cory Doctorow on the limiting situations that characters face, and whether or not those limits are realistic. It gets a little political at the end, but I think it makes a good point (especially for SF/F writers, who have more control than those grounded in "the real world") on taking a step back and checking whether the constraints you've placed your characters are realistic, or just there to force them into a plot resolution. Have a read:

Cold Equations and Moral Hazard