How many generations of constant bent over posture staring at a device before that's just built into the species?

Im not sure people with bad posture get more offspring than others. :)

The pickins are getting slim though. I don't know anyone in their 20s that doesn't sit hunched over staring at a screen for a large portion of their day while stipulating I don't know any where near all 20 somethings. Just one person's observations

If I learned anything at Buy N Large University, AR screens in eyeware may be huge.