Hmmm. If I understand you correctly, then two people could produce an identical argument but one would be incorrect because he did it backwards? Do you suppose that there is an implied arrow of time in every syllogism?
The argument could turn out valid, by coincidence; but the process of making it isn't valid, so given the vast space of all possible arguments... it's probably not valid. Indeed, as nearly all advertising, propaganda, political campaigns, etc. are not.
Hmmm. If I understand you correctly, then two people could produce an identical argument but one would be incorrect because he did it backwards? Do you suppose that there is an implied arrow of time in every syllogism?