We're moving into an era when things are dematerialised and much more holographic. Floating above the physical world and the geographic map, there's another landscape that's constantly changing - something like a cloud - of communication, information, exchange and commerce.
Brain extenders are anything that get information out of our heads and into the physical world: calendars, key hooks by the front door, note pads, 'to do' lists.
At death, you're going to be needing some spiritual guidance and some kind of inner knowledge that extends beyond the boundaries of the physical world... it's what's inside that counts.
In Gnosticism, the physical world did not ultimately matter - which meant physical suffering did not matter either. Seeking 'enlightenment' meant cultivating an attitude of detachment, even indifference.
