Why are transaction costs not in cents yet?
Much of the gas cost incurred on an optimistic layer 2 network is to offset the cost to rollup the transaction to ethereum L1. Ethereum mainnet is expensive. For example,
https://etherscan.io/tx/0x801b65cfd1f0de5a184f42bab7d74e41234d2f8837fc5efae9506dadbd78ba15
