Alright to begin
I disagree with downgrading the verse to subsonic/transonic speed for the following reasons
First Point
The first reason is feats contradict the statement. Yes, statements are usually all go to in most cases. However, statements can be disregarded if they do not match with the story. In this case we have 8 calcs that disagree with subsonic speeds. Listed below. (Sukuna’s 15 finger feat is not part of it).
This is a list of all accepted feats. For those who say statements over feats. Statement can be disregarded enough evidence from feats exists.
Accepted Feat list:
Maki blitz Ogi (
Hypersonic)
Itadori (Beginning of series) blitz curse (
Subsonic+)
Stone hand speed (
Hypersonic, assuming 0.08 (benefit of doubt)
Supersonic)
Maki catching bullet point blank as she did High Hypersonic+)
Speed of tree appearing (
Supersonic)
Speed of jobber people who can't perceive Maki's movements (
Subsonic+)
Geto casual speed(
Supersonic)
Sukuna (3 fingers and 15 fingers) speed (
Supersonic+(3) and Hypersonic+(15)) 3 fingers scales to Shibuya Toji and Megumi (who would scale to other like Itadori and Nobara) as Shibuya Toji was compared to be as fast as this Sukuna (3 fingers) and Megumi kept up with that Toji)
Yes, small number of feats don’t mean much, but 8 feats is not small. This more feats than most verses have. It quite clear that subsonic doesn’t match up with what’s happening in the verse. It very evident that statement contradicts what is happening and is out shadowed by 9 feats. These feats happen quite early in the series as well. The feats were argued against earlier in the thread; however, most arguments were about the way of calcing which are used across the entire wiki and others had no real basis towards them.
Second Point
My second reason involves three characters. These characters are the principle of Kyoto, Inumaki and Urahime. I bring these 3 up as all three of these are individuals who have sounds attacks.
Principle of Kyoto (Sound attacks from guitar)
Urahime (Cursed technique involves singing)
Inumaki cursed speech (Speaks)
In terms of the statement against anything current speeds, it suggest that no character up to that point was above subsonic speeds. However, these three individuals aren't any special characters. They haven never been regarded special for anything, most definitely their speeds or attacks speeds. Which is weird for characters who are supposedly faster than the entire cast, despite never showing anything above them. There are even characters like Yuji who is noted for his speed by hanami, despite hanami fighting inumaki early and not taking him seriously. It is also worth to mention that the principles sound attacks have also been perceived, reacted to and blocked by Juzo, a jobber character himself.
Third Point
This is the statement that is being referred:
My third point is the statement itself misunderstood by many, but first, Naoya's technique. First Naoya's technique. Naoya's (same as Naobito's) technique allows him to set a predetermined path of movement for one second, however his movements in that path for one second are broken down into 24 frames. However, once a path is set it can be broken otherwise result in one second of being frozen. However, it is revealed by Naoya that having the technique constantly on, it increases your speed continuously.
The statement in question is that Naoya “
had already surpassed subsonic speeds”, past tense. Naoya prior to fighting Maki at top speeds had already surpassed subsonic speeds in his fight with her earlier. Throughout the fight he was already above subsonic speeds and was continuously growing his speed as it went on. Not that he just surpassed subsonic speeds. When it states that Maki is at a disadvantage, it is because of her extremes loss of blood and injuries are affecting her and due to Naoya's continuous growth in speed Maki isn't able to win a projected fight. this is backed up by the fast these statements (Naoya growing continuously and Maki disadvantage).
To make is easier to understand:
Naoya does not surpass Subsonic speeds in the moment of that statement, it is referring to his speed prior in the fight, having directly saying “
had already surpassed subsonic speeds”. past tense, which Maki is able to keep up with in the fight. This is because of his continuous growth in speed with his technique. which comes directly before the statement about Maki. This refers to her condition as giving her a disadvantage in along fight because she isn't able to hold out much longer, and is in trouble of Naoya's growth in speed. The statement refers to his surpassing subsonic speeds as benchmark in how fast he is growing, Naoya merely activating his technique is already surpassing subsonic speeds.
That's what it means. This itself doesn't refer to everyone being below subsonic speeds.
Conclusion
To summaries up what is being said
-There are many feats in the series that contradict the notion of current characters being subsonic speeds. While statements are usually the go to, they can be dismissed when it doesn't match. There are 8 feats that contradict it ranging from the beginning to the current times of the series.
-There are established sound attack users in the series. These characters are never regard forthere speed or attack speeds. With such being Inumaki, who fought Hanami, hanami not taking him seriously, however taking Yuji seriously and noting him for his speed after fight inumaki. There are also jobber characters perceiving, reacting and blocking the principles attacks which are sound.
-The statement is misunderstood by many, it is referring to Maki at a disadvantage due to injuries affecting her. She isn't able to win and long fight with Naoya due to him continuously growing in speed, which the "
had already surpassed subsonic speeds" refers to him doing so prior in the fight as benchmark for him growing in speed. Which inherently doesn't make other characters in subsonic either.