Blood letting basically. You get all the good and bad out, but your body doesn’t replace the plastic. So you’re down X amount of blood internally but when you regenerate it via your bone marrow it’s now your own body and not half human half barbie doll.
I’m no doctor so I can’t delve any further but that’s my basic understanding of the way it would maybe work. Like having a bucket of dirty water with a hole in it. Sure some good water gets out but a lot of dirt does too. Then it rains (replenishing lost blood) and dirt doesn’t fall back into the bucket.
I’m pretty sure all these tech companies want to research glasses so much because it’s the last real estate before reading your thoughts with a wifi hat. If it can track eye movements, pupil dilation, hear you, etc then it basically knows everything about you as a human commodity. Cell phones have tracking and browsing data but glasses offer your mind to advertising. Knowing what you look at, who you talk with, how you browse, what you delete before retyping a message, your bank pin, anything that you can see.
I’d rather have a Bluetooth earpiece with AI/google assistant/alexa thst does stuff when I want it. What’s the weather in 4 hours? Do I have anything in my calendar today? Where is the nearest gas station? I don’t want a chess winning butt plug that tracks my bowel movements and sells me toilet paper.