According to this calculation, rates could drop another full percentage point before the Fed hits "real" zero.

BBC: Analysis: The Fed's next move

Economist Alec Phillips of Goldman Sachs remarkably argues that benefit cessation would shave a half a percentage point of growth from the admittedly unreliable GDP calculation.

FORBES: With Unemployment Benefits, It's the Invisible That Truly Matters

Doctors still use a rough calculation to work out the chances of survival - if the percentage of the body burned added to the age of patient exceeds 100, then things are looking bad.

BBC: Saving your skin