Next time a clever dick on a forum or a clever journalist argues that there is no evidence for x or y answer as follows: There is no Class I evidence from randomized controlled studies that using a parachute saves lives, nevertheless most people accept that and use them anyway.

Next time a clever dick on a forum or a clever journalist argues that there is no evidence for x or y answer as follows:

There is no Class I evidence from randomizer controlled studies that using a parachute saves lives, nevertheless most people accept that and use it anyway.