A fetus is basically just like a brain dead person? This coming from a yale graduate supreme court justice

Some have deader brains than others

Sotomayor was never the brightest bulb in the box.

Sotomayor has no business being on the Supreme Court. She wouldn't know the Constitution if it came up and bit her. She thinks Mein Kampf is the supreme law of the land.

Which makes zero sense, is an embryo a dead body?

I'll think about it, depending on if I'm harboring any resentment for something you may or may not have said/done to me sometime in the past ;)

She evidently doesn't know about the medical practice of administering anesthesia to fetuses for prenatal surgery especially after 20 weeks. Why would they need that if they can't feel pain?

https://pubmed.ncbi.nlm.nih.gov/?term=Fetal+surgery+anesthesia+

Because forgive and forget for who knows what surely grave reason has no place on the Interwebs?

Point she was probably making?

Reacting to stimuli DOES mean it CAN feel.
Whether that sensation can be called pain has as much bearing on the outcome as does shooting someone in the head after knocking them out with Chloroform. To liken that to say, electrically stimulating muscles in a corpse to move is to miss the purpose behind having an abortion, and exactly what that act results in, by design.