Base Fee

In EIP-1559, the network-set portion of a transaction fee that adjusts automatically each block (up if the last block was over half full, down if under) to target predictable, market-clearing pricing of block space. Crucially, the base fee is burned (destroyed) rather than paid to block producers — deterring fee gaming and tying ETH supply to network usage. Users add a separate priority-fee tip for faster inclusion. A better pricing mechanism, not a way to make scarce block space cheaper.