Tooth interiors can differ as well, and variations like enamel thickness and pulp chamber size can yield critical information to the trained eye.

However, every newly identified virus contains critical information, regardless of its ability to move into human populations.

If doctors were more patient and ready to listen, if patients were encouraged to speak, critical information could be ascertained inexpensively and relatively quickly.

In terms of market information, technology hasn't levelled the playing field but it has put critical information in the hands of backwoods growers.

City fund managers have been upset that they are having to buy shares in flotations without being given access to critical information.