Richard Carrier's Take Down of "The Argument from Reason" Is Comprehensive and Irrefutable!

In a clearly written post taking dead aim against the Argument from Reason, Richard Carrier exposes one of the most used apologetical "god-of-the-gap" ploys. "Where does logic come from?" asks the apologist seeking to conclude that logic can only be accounted for if God exists. Carrier's post is comprehensive and irrefutable!
One question atheists tend to be bad at answering, because they rarely give it much competent thought, is the ontology of logic: what, physically, does it mean to say that logically impossible things can’t ever happen or exist? Or as a theist might pose the question: if physicalism is true, and only physical things exist (and in our observed case, that means “nothing but” arrangements of matter-energy in space-time), how is it that anything obeys the “Laws of Logic”? Those aren’t, supposedly, laws of physics, right? And in any event, laws of physics are contingent—they could have been different. What keeps Laws of Logic from having been different? Why are they special? And how is it that anything in a purely physical universe obeys them?

Of course a lot of silly apologetics then spins off of the typical “you can’t answer that” God-of-the-Gaps approach here. We need God, you see, to make sure things obey logic, or for logic to even exist as a compelling force over reality. Because, you know, logic is “mental,” or something, yet it governs everywhere, so there has to be some supreme mind manifesting it, which would be God. Yadayada. You get Presuppositionalism out of this; as well as variants of its less loony cousin, the Argument from Reason. As usual, the approach is bogus. Because it simply isn’t true that “you can’t answer that.” One actually can show why logic will be an inalienable governing property of anything that could ever exist. No gods—or minds—needed.