His thought process is backwards.
He's looking at this as "simple gameplay needs the controls to be simple" as in "simple minded" in other words; stupid.
What really should be is "simple gameplay needs the controls to be simple" as in "it is simple for the controls to recognize the motion I am performing" in other words; smarter.
More accurate instruments do not REQUIRE more accurate motions. However more accurate motions do require more accurate instruments.
Bookmarks