What we consider dust today won’t be dust in a few years ;)
Likely the reverse.
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How? If bitcoin 10x in 4 years the value of those 1000 sats onchain will grow more than the growth in fees
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The issue isn't that btc won't be worth more, the issue is how many sats does it take to get a transaction on-chain, and how big a proportion of the UTXO will that be.
Have a look at the Unchained report I linked, it goes into it in detail.
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But fees are denominated in bitcoin and have been stable in those terms for many years
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