OXM - Ever wonder what the term "half-life" actually means? I've just spent about half-an-hour researching it, with a view to constructing some kind of clever introductory analogy for Valve's long silence on the subject of Half-Life 3's release - something about never being able to accurately predict an outcome, thanks to unpredictable rates of nuclear decay and Gabe Newell being all coy about stuff, that heinous bearded monster.

