Thank you for visiting nature.com. You are using a browser version with limited support for CSS. To obtain
the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in
Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles
and JavaScript.
The stock-market crash of the past two weeks signals the end of more than a mere bull-market. Even if governments have the wit to avoid a serious depression, United States citizens will be impoverished.
A surprisingly simple model of polymer molecules moving in a network representing the constraints of others like themselves may be a pointer to a simpler theory of macromolecules in solution.
For parallel computers to simulate our brains, we must face the fact that human beings have a better claim on the title Homo seriatim than Homo sapiens – we're more consistently serial than wise.