[AIP-65][Discussion] Storage Fee for State Bytes Refundable

[thepomeranian]

AIP Discussion

Summary

Proposed is an evolution of the Storage Fee charging scheme where a category of storage fee (dubbed "bytes deposit") is charged and refunded according to the number of bytes a state item itself occupies in the current state, in addition to the existing "slot deposit" which reflects the storage impact imposed by a individual state item via the authenticated data structures.

Specifically, the legacy "free quota" mechanism which heavily punishes updating a large state item is removed.

The updated scheme aligns better with the reality of disk space consumption by the transactions hence serves as a better economic benchmark for the developers to optimize the cost of transactions.

Read more about it here: https://github.com/aptos-foundation/AIPs/blob/main/aips/aip-65.md