"Effortless power" feels "effortless" but do demand effort, which moves the club(head) effectively, efficiently and precisely and randers it "powerful".
"Powerless effort" feels "powerful", yet the effort/intention is directed toward the ball (or/and its behavior), which usually causes the opposite of the above to the clubhead movement and randers it "powerless".
...which boils down again to technique - getting the job done with the least amount of resources.
We want maximum distance for a given ball speed.
And maximum ball speed for a given clubhead speed.
And maximum clubhead speed for a given hand speed.
And maximum hand speed for a given amount of lag pressure.
And maximum lag pressure for a given amount of effort.
We want maximum distance for a given ball speed.
And maximum ball speed for a given clubhead speed.
And maximum clubhead speed for a given hand speed.
And maximum hand speed for a given amount of lag pressure.
And maximum lag pressure for a given amount of effort.
Yep!
And how would Tongzilla craft a Machine to meet this most excellent criteria?