i heard like seven years ago they were looking for a suitable laser. Maybe they never found one.
Right, they would probably have to consider the thermodynamics of cutting into bone. Thermal energy will be released as it hits the bone and it would be very important to make sure the bone and surrounding area doesn't overheat. Could be perhaps water cooled via spraying water onto be bone and extracting it. But I don't know much about anatomy to know well enough about it.
I've wondered. Can we move nerves around? What are the hurdles of fixing broken nerves.
Also, ugh I wish I could just transplant my brain into a CRISPR lab grown body.