Originally Posted by
Darsyek
Ah, I'm so glad you asked! As you said, there were 32 artifacts, one for each spec, and each artifact had, on average, 23 total traits to "pick" from (in quotes because by the end of Legion, you had them all so you weren't really "picking"), for a total of 736 total traits. Including, of course, the 32 copies of Concordance that was the same for every class.
In BfA, each class had access to, on average, 300 pieces of Azerite armor (as per Wowhead's databse). 12 classes time 300 pieces is 3,600, but of course there were overlaps for armor types so let's divide that by 4. That's still 900 options. Each option at max rank (in 8.2) had 5 slots to choose from, despite the misleading picture you posted where you're comparing 7.2 Artifacts to 8.0 Azerite armor for added disingenuous bonus. 900 options x 5 slots to fill gives you, at minimum, oh... About 4,866,287,287,680 possible combinations. Just a casual 4.8 trillion possibilities. Now, of course, each class has it's "optimal" selection so realistically, the number is much smaller. But as you've established so many times, the issue of picking optimal solutions and grinding AP is not an issue for the majority of the playerbase, so they wouldn't be too concerned about being optimal and would just pick what's fun, right? Ah, but shucks, that doesn't even include the possible combinations of powers on the Heart of Azeroth itself... Darn, guess I'll just have to leave that up to your imagination.