yes it do work even in our world, if you can see the movement of muscles not only can you predict the next move but you can see where does the muscles strech the most and if you u hit at that point the opponent will feel huge pain and even internal injuries.
Thanks for your opinion. You're right about your point, but the actions of Danzo shown throughout Naruto clearly state that he is someone who can go to any lengths. You're saying that a civil war is quite unrealistic, but don't forget two points: 1. Danzo allowed the entire Konoha to be destroyed because he knew that Tsunade was there and could heal almost anyone. Additionally, during the second and third ninja wars, Hiruzen was said to be at his peak, so Danzo's confidence comes from there.2. Uchiha Karan killed Hiruzen's son, so his extreme actions may be justified.
I will tell you few facts that's childish1. Danzo allied with Rain village just so that Konoha and Iwagakure can fight for more time and he can become Hokage and it is canon.2. Third Hokage let Danzo live when Danzo was almost certain that for attempting assassination on Hokage he will be executed, now this is childish.3. Uchiha clan was hated by all four of the elders due to Tobirama and theirs relationship in Sengoku era. this is also canon.4. After Uchiha clan was executed Hiruzen punished Danzo by saying "your roots are disbanded." Didn't Hiruzen knew about curse mark of roots he knew about it what does this show childish. 4 year old thinking.5. the most important part this my fanfic whatever I write is up to me.
i guess you are missing one point his bloodline keeps evolving.