[MineralMan]

"It is turtles all the way down only so long as the last turtle, the one on the bottom, is metaphysical."

There is no last turtle. Even metaphysical turtles need a place to stand. Once you move into the metaphysical realm, it's just one metaphysical turtle standing on the back of the one below. There is no bottom turtle. It is turtles all the way down.

[MHGinTN]

Because the laws of our universe are founded in space time (the physical universe), prior to space and time is a metaphysical reality, thus the whole thing depends upon a metaphysical basis ... your stack of physical turtles will have a metaphysical turtle on the bottom, or, your stack of metaphysical turtles supports we physical turtles, if you prefer.

[Thrusher]

There is no last turtle. Even metaphysical turtles need a place to stand. Once you move into the metaphysical realm, it's just one metaphysical turtle standing on the back of the one below. There is no bottom turtle. It is turtles all the way down.

But you are applying physical laws to metaphysical turtles. Metaphysical turtles don't need a place to stand.

They are, by definition, metaphysical.