solitary confinement is an interesting phenomenon in our current world because it is an example which shows us very interesting points and truths about how we as a human collective exist.
Here's what wikipedia has to say about solitary confinement:
Solitary confinement is a form of imprisonment in which an
inmate is isolated from any human contact, though often with the
exception of members of prison staff. It is sometimes employed as a form
of punishment beyond incarceration for a prisoner and has been cited as
an additional measure...
