This is known as an infinite regress.

这被称为无限回归。

In the end, we are left with justification either by circular reasoning, by infinite regress,   or by axiomatic statements (or assumptions).

最后，我们只能通过循环论证、无限回归或公理陈述（或假设）来证明。

Such homuncular functionalism (as the approach is known in AI circles) replaces the infinite regress with a finite one that terminates at tasks so dull and simple that they can be done by machines.

这样，这种侏儒技能主义（在人工智能领域）就用有限回归代替了原来的无限回归，而这种有限回归能够在任务变得非常单调又非常简单以至于只需机器就可以完成的时候自动停止。

Aquinas concludes if we are to avoid an infinite regress which finally explains nothing at all, we must come finally to some reality which does exist through itself.

如果我们要避免那种终究解释不了任何东西的无穷回溯，就得归到一些自存的实在上。