See
DoTheSimplestThingThatCouldPossiblyWork,
TimeToMakeItSimple,
EinsteinPrinciple
Also the
SimplestThing that makes sense given the situation. A more comprehensive thought than the qualified link given above, encompassing a plethora of states and processes. Those preferring simplicity of statement might use the shorter. Those desiring clarity over simplicity might use the longer.
{My experience is that you very rarely, if ever, find the
SimplestThing that could possibly work. Just something
SimpleEnough. Reducing things to simple components is, like many optimization problems, very difficult.}