Hi, Esquire.
Let’s be more precise: When it comes to the external reality, then there is always some degree of uncertainty. We must always be aware that there can be an error, either in the observation, or the interpretation. This, of course, does not invalidate the inductive method, it merely cautions us to be aware of the possible problems, or exceptions. As such it is a practical “warning”. On the other hand, in the formal, axiomatic systems, we know with absolute certainty that propositions from the axioms are valid (by definition). The Pythagoras theorem will never be invalidated.
The objection simply warns us not to elevate the “practically” certain method to the rank of “absolutely” certain, metaphysical principles. Yes, we can practically say that physical causation is universal. A billiard ball will not start rolling, unless it is pushed by the cue-stick. But from this, practical observation it does not follow that there cannot be an “uncaused” event. As a matter of fact, the “emergence” of virtual particles look like a good example of uncaused events.
Without the laws of logic there can be no reasoning. If “A is A” would be denied, then there would be no “true” or “false” propositions.
The reason is simple. The universe is not an object, it is abstract set. It is a collection of physical objects. The fallacy of composition is applicable here. Again precision is important. The fallacy of composition does not say that it is incorrect to generalize from the particular to the general, it merely states that such
generalization cannot be “automatic”, it needs to be established. (Example: valid generalization: “the floor is composed from white tiles, therefore the floor is itself white”. Incorrect generalization: “the floor is composed of square tiles, therefore the floor is itself square”).
As opposed to “
inefficient” causes? Sorry, this thomistic concept is also rejected. Causation is experienced as a physical interaction. True it is not an absolute rule, theoretically there could be exceptions, but they need to be demonstrated. People who believe in the “paranormal” are welcome to demonstrate such non-physical causation using their “mental powers”.
I am not interested in the multiverse concept. My stance is simple. When it comes to the universe, concepts like “temporally before” or “spatially outside” or “externally caused” are nonsensical, undefined and undefinable. The universe is all there is, and one cannot speak meaningfully of “creation”.
I explained about the problem of composition above. And, indeed to speak of the “origin” of the universe is an exercise in futility. The universe is the ontological foundation of existence, and to speak of “outside” or “before”, etc… exactly as unacceptable as speaking of an object that resides to the north from the North Pole.
Sometimes people state that the universe “does not explain itself”. Apart from the horrible linguistic form (the universe is not a teacher to explain anything

), this objection is unacceptable. If one wishes to avoid the infinite regress, there must be a “starting point”. For theists this starting point is God, unexplained and unexplainable. For the atheists it is the universe. The theistic starting point is more “complicated”. That would be no problem, if only it had “explanatory power”. But it explains nothing. As I said before: “an unknowable being using unimaginable means made the universe somehow happen”. That is not an explanation.