His friend, visiting him in the hospital, asks why he did that. An insurance company actuary can tell you how many people will die this year, a mafia actuary can name them. An actuary and a farmer were traveling by train. By chance, I know the owner, and the figure is absolutely correct. Actuaries do it without risk.
Actuaries do it with frequency and severity.
Actuaries do it until death or disability, whichever comes first.