People predicting vastly lower fees after Dencun are setting users up for disappointment. Yes, whichever rollup(s) will switch to blobs first will enjoy very low fees for a while, but in a few weeks fees will be back closer to today's levels. 4844 is not yet DA scaling, just a more efficient separate rollup fee market.

Ethereum protocol R&D. Admirer of emergent order.

Shouldn’t there be a little permanent drop in fees?
Since L2 data is now separated from block space?

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Yes definitely! That's what I was trying to say with "closer to today's levels", I should have worded that clearer. Basically, it will be lower than today (all things being equal - easy to see L2 demand pick up enough to negate that), but only moderately so. Exact change depends on demand elasticity, hard to predict.