Ok so this chapter finally concretely confirmed that not feeling pain or fatigue is something that mastered UI has well (ok maybe this was obvious to everyone else but I've unrionically met a lot of people who thought UI only removes your abbility to feel pain and fatigue if its unmastered for some reason lol) it also confirmed that black bones are a general durability increase not just anti-Goo- I mean anti-swords a h e m.
You aren't the only one. The most I could find was that Uncontrolled ui users feel no pain, or just blatantly ignore it. I thought ptj was doing his larping with the kenjo situation since kenjo somehow felt pain?
Ngl possibly controversial opinion but I am pretty sure black bones weren't actually an asspull, just badly set up. I say this because of what Warren said when he used CQC on Gun in HFBD I am pretty sure that was the 'set up' for black bones, it was just set up very badly and barely elaborated on until it was relevant and the wording made it seem like it only worked on swords which made it seem like an asspull given that Gun was fighting Goo, you know, John sword fighter himself
I personally think it was badly set up. Ptj could've handled it infinitely better, there should be no way yuseong should've broken gun's bones, especially since it likely scales above his
conventional durability.
Based on how it was handled, I dare say Black bone was likely made on the fly, just to make the yamazaki, and peaks of the clan like shingen and Gun special to some extent, as it doesn't seem like they ALL posses it, but they all likely have the
capacity to possess it. It's weird, but I think it could've definitely been handled better.
This messes up the scaling due to the yuseong situation of him destroying gun's arm, when realistically it should've never happened. Unless Black bone was only unlocked when Gun went into TUI...? I won't even bother to explain that.
Granted its entierly possible it was an asspull and PTJ is just retroactively retconning it so it feels like less of an asspull.
Def more so an ass pull, but not as well... A partial aspull. I don't believe the BB were a thing during the Yuseong incident. Ptj likely came up with it after the fact to make Gun unkillable with normal weapons/ swords.This was also to set up Goo for the hwarang as well.
This also explains the UI Daniel fight and the entire gauntlet, if Gun can't feel pain and UI Daniel adjusts his stats and Gun had memorized all his attack patterns then Ig its not quite an asspull? Kind of?
I think the paradox was done well. I don't think it should be an ass pull as it makes sense on a technical level, to me at least. If Gun can't abuse it and win, then no one can. Gun also shows us that Daniel IF you defeat him fast enough, you should be fine, and I think this will come in handy later. If ptj didn't do this, Daniel would just win all his fights

.
Also does this chapter finally make TC a real ability? Because a lot of the community thinks its not real lol.
I'm unsure. But the most plausible explanation is that conviction is the mastery 'this is what Jinyoung used to punch kitae) but TC is it's application in which the person is facing a wall + the will to protect (this is what Jinrang used, as it burned his body).
Ptj seems to be showing us that MAYBE. Conviction by itself s just a stamina burner, while TC actively destroys your muscles and bones in order to push past an enemy.