Anecephaly is a thing. Though those babies don't survive much past birth.
Most do not, which suggests to survive to adulthood more of a brain will be needed.
Some anacephalic babies survive for months, even years and function mentally: https://www.dailymail.co.uk/news/article-2226647/Nickolas-Co...
I am very sceptical that you could create a clone with enough of a brain to survive and guarantee the clone will have no awareness.
alt Hacker News
Most do not, which suggests to survive to adulthood more of a brain will be needed.
Some anacephalic babies survive for months, even years and function mentally: https://www.dailymail.co.uk/news/article-2226647/Nickolas-Co...
I am very sceptical that you could create a clone with enough of a brain to survive and guarantee the clone will have no awareness.