https://ask.slashdot.org/story/17/04/29/2134234/ask-slashdot-could-we-build-a-global-wireless-mesh-network https://news.ycombinator.com/item?id=13102698 https://news.ycombinator.com/item?id=6274455 https://news.ycombinator.com/item?id=7247600