christian

The breathing styles of Demon Slayer are not magic. The images like fire, water, or even butterflies are stemming from the imagination of the wielders as they are implementing their attacks. It's a means of focus for their technique.  Techniques like the final form of Flower Breathing is literally an eye straining technique that causes blindness.

Furthermore, Tanjiro didn't get stronger overnight. He spent 2 full years training to become a demon slayer, working his butt off and building up muscle mass in the meantime. After Mt Natagumo he learned Total concentration breathing constant which took a little over a month. Following that, after Mugen train they spent months recovering and training in the butterfly mansion. Heck even the Hashira training arc was a span of 4 or 5 months. So Tanjuro worked hard for a few years with very little downtime between those moments. And keep in mind all of this was without a mark.

Also Tanjiro's sense of smell does not predict the future. I believe you are confusing his sense of smell with the Transparent World which IS an ability he does have access to. The explosion at Kagaya's mansion can be easily explained as the family being there dropping Muzan's guard. If it had just been Kagaya, Muzan would have been wary of a trap, especially considering he was aware how clever the Ubuyashiki family could be.

Zenitsu's situation isn't that hard to think as possible considering sleep walking exists. He doesn't get knocked out, he falls asleep as a safety measure that he's developed from trauma. That said, he does get over this weakness.

As for the armor argument...Every demon in the anime is capable of crushing bone with their bare hands. Armor would not help other than putting the demon slayers in sardine cans. Their movements would also be a lot more hindered by the armor and their sword play would suffer for it.

My question is if this reveal is making Valve consider a Steam Deck 2. Which...honestly wouldn't make a whole lot of sense right now in the current gaming landscape. I think they'll just have to wait and see what Nintendo has up their sleeve and determine if it's worth it.