just wondering

Why is the phrase “turtles all the way down” always taken as a game-ending slam dunk, even when the alternative adopted is “the final turtle at the bottom of the world”?

If you don’t want an infinite regress of entities, the choices are:

(a) a finite regress to some ultimate constituent of the cosmos

(b) no regress at all, with everything remaining on the surface of human access and nothing hiding beneath

Neither is a very good choice.