More than a mere source of Promethean sustenance to thwart the cold and cook one's meat, wood was quite simply mankind's first industrial and manufacturing fuel.

The Stalnaker-Lewis approach is far from being uncontroversial or devoid of problems, but it does allow one to avoid the circularity of having to establish what information is metatheoretically or contextually relevant to the agents in order to evaluate some further relevant information.

one fell swoop

If your sysad does not have time to pay adequate attention to security issues, restructure his or her duties.