Board Thread:Questions and Answers/@comment-38947763-20190921181204/@comment-38952966-20200525220301

There is no reason to treat Scan as anything other than a Stand. All the evidence points to it being a Stand. There are no Stands that belong to any specific corpse parts, so why would Scan be different? Hell, Lucy gets nothing from the right eye and when Diego gets the left eye, he gets a totally different ability. Not to mention that Gyro was shown being able to see and interact with Stands before he got it. Either the Spin can inherently do that, or the rules of Stands have changed in SBR, which other evidence kind of points towards.

Stands are individualized by nature. No two people can have the same Stand, that's one of the few defining rules. Granted, the rules are different in SBR, but there's no actual examples of sharing Stands except amongst animals, who have less mental differentiation. Even with Tomb of the Boom, while they all share the same name, they function differently. I find it convincing evidence that every other Stand in the series (well, most of them) have a listed Stand User except for Ball Breaker. There's a reason for that, being Ball Breaker isn't Gyro's natural Stand, Scan is.

Araki's comments on Hermit Purple as "the visualization of the Ripple as a Stand," are referring to its design. The gang seeing Hermit Purple wrapped around Joseph is an indicator he was using his Stand subconsciously, like Giorno did when he hid the gangster in the grass (hence why in Battle Tendency, Joseph was always able to predict what people were going to say/do). Hermit Purple can conduct Hamon (though it's no better a conductor than anything else, from what we can see) but it has abilities completely unrelated to Hamon. Divinations and electronics control are shown as Hermit Purple's primary abilities, and it doesn't use Hamon remotely the same way Tusk or Ball Breaker uses the Spin. For all we know, any Stand can conduct Hamon like Hermit Purple. Hermit Purple being a "Hamon Stand" is an assumption.

Also, that "Debunking Araki Forgot" video has a few problems. The implication of the scene where Johnny seemingly uses ACT 4 without the horse is that Johnny has already used the infinite spin on Gyro's coffin. Johnny can summon the punchghost of ACT 4 only as long as the infinite spin remains active. That's why the coffin was shown affected by the infinite spin. Johnny did it so they couldn't take the coffin off the ship. If Johnny could summon the punchghost of ACT 4 whenever he wanted, there are several instances during his fight against THE WORLD where he would have done so. Again, Johnny being able to summon the punchghost without a horse is an assumption.

I could've sworn there were multiple instances where Boy II Man was used without it's ability, but I'm too lazy to go check so I'll trust your word on that one.

We might have to agree to disagree on this. In my opinion, the theory that requires the least assumptions is that Scan is Gyro's Stand and Ball Breaker is its infinite rotation power up.

(Side note: Don't know if you care or not, but you can go on the Jojoveller page on this wiki and it has some of the content. It doesn't have everything from Jojoveller, but has snippets from Araki's commentary on each Stand, in case you wanted to take a look.)