I feel like the biggest losers here are open consensus-based cryptocurrencies like [Stellar](https://stellar.org https://stellar.org) and [Ripple](https://rippl

I feel like the biggest losers here are open consensus-based cryptocurrencies like [Stellar](https://stellar.org https://stellar.org) and [Ripple](https://ripple.com https://ripple.com). Libra seems to have the same niche: a consensus-based blockchain protocol rather than proof of work. I fear that having the clout of a bunch of tech companies behind it will get consumer buy-in much faster than Stellar will (with IBM World Wire). A stablecoin backed by a consortium of large companies is an interesting design choice; it's more intuitive for consumers, but seems like it opens itself up to arbitrage, taking advantage in price differences between the different currencies the crypto is pinned to. I much prefer Stellar's decentralized exchange, where tokens can be issued by any user and exchanges from one token type to another happen transparently via people advertising exchange rates.