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As I understand it a pegged currency is useful for trade as you know how much something will cost. Then people are more likely to spend it. We have this currency with fast, free transfers, but people are just holding it

Ah, that makes sense! It would actually be very nice if it was 100 % pegged to $1 in that case, cause then we have a very nice cryptocurrency to use for buying and selling non-crypto stuff! I have just been thinking of it like a regular cryptocurrency until now, but what you say sounds very nice. Thanks for explaining :)