Blockchain
为什么稳定币无法在没有网络的情况下完成支付？
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Opportunity
数字货币本应惠及那些银行从未覆盖到的人群，却在网络断开的那一刻就失灵了。离线和断续支付、待信号恢复后再结算，这才是现金的运作方式，也是世界上许多地区仍在使用的方式。加密货币很少为此进行设计。
Why it matters
只有在网络畅通时才能运作的支付，对地球上大多数人来说算不上真正的支付。
我如何评估机会
The Opportunity Score is my own read, not a measurement: how much it hurts, how often it bites, and how little exists to solve it today. Higher means I think it is more worth building.
严重性7/10
How much pain it causes when it shows up.
频率7/10
How often people actually run into it.
空白空间8/10
How little good tooling exists for it today.