How come Apoc and Switch died when Cypher unplugged them?
“The body cannot live without the mind.” Somehow, the mind/consciousness leaves when they get plugged in, and one needs a proper ‘hard-line’ (data path) to get back in properly. (I don’t know exactly how the jacking-in works, but it’s stronger than virtual reality as we know it.) The hard-lines were hacked by the Neb crew, to transport their minds back.