Although you feel sad about the conditions people in Kibera live in, and the lack of basic amenities there, when you talk with people, you realize that people are actually quite content and happy. And the whole place is so vibrant - in the couple hours I spent there I saw a hairdressing salon school, a pure herbalist clinic, a mobile hacker shop, a sack farming specialist, a local grinder (reminded me of rwanda days) - the list goes on. I wonder how many hacks in this world can actually make it out as real products. My guess is many.