Board Thread:Theories and Speculation/@comment-26479810-20191214162345/@comment-32685487-20191217210504

Yes it does seem that way, but we need to remember that the more one refines a tech the better they get with it and have more uses of it and need less chakra with it. Hiruzen, Itachi, and Kakashi for example refined their techs to the point they only needed the bare minimum of chakra to use them. Kakashi refined Raikiri and Kamui to the point he not only got better with them but he could use them more often. I think its far more likely Sasuke learned how to do that with his Space-time Tech. It does indeed take a lot of chakra, hence him losing his Rinnegan's Tomoe and his Sharingan shutting off, with him getting very, very low on chakra almost every time. We also need to remember Sakura herself was never said to have a ton of chakra even with the Byakugo, she just had far more than her normal reserves with it. It makes more sense and is more logical this way too.