I think that black Africa is extremely terrifying. Black Africa can become a maelstrom of warring tribes without the outside world needing to feel the need to do anything about it.
At some stages of your life you will deal with things and at others you are overwhelmed with misery and anxiety.
Advertisers are not thinking radically enough - they look for technology to lead instead of trying the neuroscience approach and thinking about what parts of the brain haven't been activated before. These new experiences bring new capabilities to the brain.