Board Thread:Theories and Speculation/@comment-36512555-20200101053037/@comment-4080775-20200103113220

Nah, his reaction speed isn't great than 1/1000th of a second. That's non-sense considering he was literally looking at Sasuke swinging his hand down. He literally saw Sasuke swing his hand down before he decided to activate Susanoo.

If I see you beginning to squeeze the trigger of a gun and move myself out the aiming sights of your gun before you completely pull it and shoot the gun, does that mean I dodged the bullet? No, it doesn't. It just means I moved out the way before you pulled the trigger.

Naruto Chapter 467, Manga Page 3, Panel 1:
 * It shows Danzo literally landing the punch he threw at Sasuke, but he literally hit Susanoo before it has even manifested visually. Literally in the panvel he hit Sasuke in, he see absolutely no Susanoo. As far as we can tell, Susanoo, or at least parts of it, can be conjured instantly because of that very panel. Itachi didn't need to react, he just needed to activate it at the moment Sasuke swung his hand down. Technique Activation and Body Reaction Speed are two different things. Minato was known for his very fast reaction speed and foot speed, but A with his LRCM was physically faster than No-FTG Minato.

I rest my case. You can't argue with die hard Itachi fans, they'll never admit they are wrong.