Board Thread:Theories and Speculation/@comment-34656247-20190511162946/@comment-9782468-20190515122257

@Jason,

How do you know no noise was made? It's Naruto, he's always known for not being silent.

Kakashi noticed that one Shinobi's presence when he was 13 with Team Minato. The other guy was still and making no noise. Is Kakashi now a sensor?

Itachi actually lives with and loves this kid, noticing his presence is not a feat. Especially since they were in their own home! They probably all could sense the Sasuke, but Itachi is a more refined Ninja than his parents so only he noticed Sasuke was eavesdropping. After all, they were in their own home and the presence of Sasuke in the house isn't weird. Itachi is a better Ninja than his parents, but that's already established; he's not a sensor.

Well you missed the point then. Itachi believed in his brother. Not super hard to get.

Kakashi could fight Swordsman of the Mist without his eyesight. I don't think it's weird for Itachi to be able to do the same.

Every translation I found had Kabuto asking "Did you sense me?" And Itachi replying "I don't have such abilities." That's pretty easy to interpret.

Shinobi can show sensing abilities without actually being a sensor. Sensors are on a different level. After all, Kakashi could sense many things as well, and yet isn't a sensor. And neither is Itachi