You omitted the part where first world countries exploit everyone else for resources and cheap labor. Especially Africa. There's a reason China is investing int

You omitted the part where first world countries exploit everyone else for resources and cheap labor. Especially Africa. There's a reason China is investing into basic infrastructure there. Capitalism does not work in isolation. I don't know anything about policy decisions and local resources in Tanzania, so I can't comment on specifics, but socialism doesn't really work in less developed countries. Look at pre-soviet Russia. The only reason the soviet union was ever a world power was their authoritarian but rapid by-all-means industrialization (aka "Stalinism"). It also doesn't work well in total isolation; the DPRK is doing much worse than East Germany ever did because they lack natural resources and soviet support is gone.