The most dangerous part of the whole surgery is what happens if something goes wrong midway after they&#x27;ve cut the heads out?<p>Scenario 1: Irrecoverable scenario where they can&#x27;t sew the head to the new body. Now what? Will they sew it back to the original body? Let the guy die(What does this even mean at this stage)?<p>Scenario 2: Head can be put on new body but they can&#x27;t do it all properly, when and how do they call it quits? What will be the state of the guy? Will they just him?<p>Other unknown unknowns.<p>Apart from the fact that the patient has taken a leap of faith, to prefer death over suffering a medical condition all his life. You have to say the doctors involved in this, and you need some really crazy amounts of courage to even attempt something like this.