Discussion topic for EIP-8311
This EIP proposes an adjustment to calldata pricing by raising the floor cost from 64/64 to 96/96 gas per calldata byte. This brings the worst-case byte density of a pure-calldata block down to the byte density of an ETH-transfer-full block, so that no priced calldata composition is denser, per gas, than this anchor.
Unfortunately EIP-2780 (currently considered for the next fork) breaks your EIP since it reprices the simplest from == to spam transaction to 12k gas. If my math is right, that means it charges 54.8 gas per byte. Maybe we can argue that the cost floor should be decreased for uniformity? Not as elegant however.
For clarity of the EIP, could you add an explanation of how you got to ~0.0105?