I so badly want to expand on ideas of this... What would it look like if someone had to stop Robot HRT? Since its replacing everything piecemeal, would that mean that its modular? How would recharging work? Does a charging port show up on the newly formed chassis?
Hey, so I was wondering "Hmm... what would robot hrt look like?", so I got to writing.
1 month: Spots of metal start appearing on skin, causing serious itching and occasional bleeding.
3 months: Eyes start being replaced with ocular sensors, causing itching and poor eyesight, especially if the eyes are being replaced instead (I.e. two eyes being replaced with only one eye). Your senses of touch, smell, and taste will also start diminishing.
6 months: Metal replacement starts speeding up, especially in flatter areas like the chest. Metal should also start replacing muscle tissue. From here the pain should be excruciating; take painkillers if you have them.
10 months: Internal organs start shifting, making way for artificial organs. Interior walls start being replaced with metal.
12 months: Touch, taste, and smell should be completely gone by now, but should still eat to fuel what's left of your biological body.
16 months: Biological organs start detaching as artificials are put into place; will have to be extricate anally or verbally. Laxatives are strongly advised. Your old eyes should be gone completely, allowing you to see out of your new ocular sensors.
20 months: Outer flesh should be entirely metal by now, causing increased strength and muscle mass.