A global decentralized currency like Bitcoin could eventually allow what happened with a global decentralized currency like Bitcoin to happen to the 2 billion unbanked too. I'm not convinced that foisting 50% weekly price swings, MtGox-calibre ecosystem security and Bitfinex-style creative accounting upon poorly educated people who rely on those savings to not die is a net positive for society.
Aside from the obvious downsides, Bitcoin doesn't even do any of the good bits of m-Pesa (local currency denominations, works on dumbphone, instant transactions, intuitive because it's basically mobile credit, loans and repayments)
Aside from the obvious downsides, Bitcoin doesn't even do any of the good bits of m-Pesa (local currency denominations, works on dumbphone, instant transactions, intuitive because it's basically mobile credit, loans and repayments)