circular reasoning / circular arguments

I’ve compared the efforts of Christian apologists to watching a Roomba repeatedly hit a wall, and nowhere do we see that analogy in action better than with a circular argument. That was one of the early topics I tackled here here on this blog like a year and a half ago, but I want to discuss circular arguments because since then I’ve noticed even more that Christians like circular arguments–almost as much as this tuxedo cat likes riding its Roomba.