China is actually working on all three at once: wearable, under the skull but not in the brain (think closer electrode, without skull, skin and hair in the way), and in the brain, each of the three has pros and cons, so it makes sense to work on all as that way you can take only the amount of risk as the need for the device justifies.
There is that and then there is the fact that the US and co almost certainly wants a literal Mind-Control device no matter what they claim, but China actually wants the Mind to remain in Control rather than Controlled, and the focus is on medical advancements for human benefit. The US will charge an arm and a leg for such, but medical purposes (or rather Medical Expenses) is secondary to how the Capitalists use anything and everything to maintain control over humanity and remove threats to their hegemonic control of the world.
An example of the US use case is in how they took “Alligator Alcatraz” Concentration Camp victims and used them for Neuralink experimentation.
Edit: I guess it would be more accurate to say that control and ending perceived threats is primary when in emergency and profit secondary, but when not in emergency IE when Capitalism doesn’t feel threatened, then profit remains primary instead, a Dialectic between control and profit with one switching with the other for primary status depending on sense of threat.
Edit 2: And since Capitalists are not a hivemind of identical drones, some will be more or less feeling threatened than others at any given time, and so while some are ringing alarm bells and throwing everything at the wall to protect against perceived threats, even at the expense of profit, others will take advantage of such a situation to drive profit higher, even when it gets in the way and makes the crisis of Capitalism worse, and so they fight amongst themselves over profiteering or measures to maintain control, and we all stand back and watch and laugh at the parasite clown show as they can’t fully organize themselves over their own greed and short sightedness, and the CPC of the PRC plays them like a fiddle while the US deludes themselves into thinking they are still winning with endless copes as the empire continues to degrade. HA HA HA HAA!


