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Because it matters what you spend, not what you earn. If you spend USD or Euro, that's what it's best to be pegged to.

Plus, for businesses, it creates a more predictable income flow, not depending on exchange rates.

At some point we need to let our attachment to fiat go.

I think there's going to be a transition time when we will need to interact with fiat, probably quite a long time, until all our needs can be met with Hive providers.