Not an electrical or computer engineer so I can’t really speak on the limits of miniaturizing hardware in terms of physics or technological ability. But even if you can fit a full computer on a fingernail, it’s gonna be hard to have a even just a USB-C connector on a finger nail. At a certain point, there’s little reason to miniaturize computers further when they still have to interface with human usable devices. Instead of miniaturizing the board further, continuing to increase transistor density on the cpu and chips to get more compute power in the same area seems like the obvious focus for future miniaturization efforts.
Not an electrical or computer engineer so I can’t really speak on the limits of miniaturizing hardware in terms of physics or technological ability. But even if you can fit a full computer on a fingernail, it’s gonna be hard to have a even just a USB-C connector on a finger nail. At a certain point, there’s little reason to miniaturize computers further when they still have to interface with human usable devices. Instead of miniaturizing the board further, continuing to increase transistor density on the cpu and chips to get more compute power in the same area seems like the obvious focus for future miniaturization efforts.