KISS is an acronym for "Keep it simple, stupid" as a design principle noted by the U.S. Navy in 1960.[1][2] The KISS principle states that most systems work best if they are kept simple rather than made complex; therefore simplicity should be a key goal in design and unnecessary complexity should be avoided. The phrase has been associated with aircraft engineer Kelly Johnson (1910–1990).[3] The term "KISS principle" was in popular use by 1970.[4] Variations on the phrase include "keep it stupid simple", "keep it short and simple", "keep it simple sir", "keep it super simple", "keep it simple or be stupid", "keep it simple and stupid", "keep it simple and straightforward", "keep it simple and safe", "Keep it simple student", "keep it simple, silly", "keep it simple and sincere" or "keep it simple and secular."[5][6]

Let's have this business done and allow Ken to crack on.