Andrew Huberman· PhD
So if you're doing a lot of reading up close, you're not viewing horizons, you're not getting a lot of smooth pursuit type stimulation from your life, or you're just getting it within the confines of a little box on your phone, like your smooth pursuit is over, you know, millimeters or what we always talk in terms of visual angle, but the amount of degrees of visual angle. But if you're just looking at smooth pursuit in this little tiny box on your phone, or on your computer screen, and you're not looking at objects in your environment like swooping birds and things like that, which I'm guessing many of you are not spending your time doing, well, these mechanisms for smooth pursuit will get worse over time. Your vision will get worse.