One scenario I'm hoping for: I had a device that was about the size of a lighter (but even smaller) that you would wear around a necklace under your shirt, betw

One scenario I'm hoping for: I had a device that was about the size of a lighter (but even smaller) that you would wear around a necklace under your shirt, between your shoulder blades. You'd calibrate it and over time it would train your posture as you slumped by vibrating gently. I'm not trying to comment/ debate on if this will ever be a mass-market product, but, it would be fascinating if they built a posture corrector into it, and it ends up that AVP users develop better posture compared to keyboard/ mouse/ screen users