Yep, the people who marketed Katanas and Samurai were straight up liars. It was eye-opening to see how much they were shilling. It was the old equivalent of "clickbait" back then, and definitely fake news. I remember reading that they only folded the metal something like 10 times usually because folding it too much would just make the sword brittle.
I was also surprised that Katanas weren't that strong and couldn't really be used to block and might snap if used against bone too many times. And could be stopped by stuff like thick wooden armor. It's why Samurai didn't carry handheld shields. Since Katanas couldn't penetrate their armor, they just used parts of the armor to block.
Then again, most swords weren't useful against strong armor. That's what spears and hammers / maces were for. The more I learn, the more I realize medieval fantasy (and historical fiction) tropes are so incredibly wrong.
I'd read that. Because the honest title, and I'd be curious as to why they're doing it, and if there might be a niche way to actually make it worth it one day.