1/ If you're coming from @ethereum, you may be tempted to think that gas on @terra_money works the exact same. Unfortunately, this assumption will likely throw you off guard as there are a couple key differences between the two platforms.
2/ FEE STRUCTURE
All transactions on Terra must include a fee to compensate the validator that spends computing resources to include it in a block. Fees on Terra can be broken down into 2 parts:
1. tax (aka. "stability fee"), on all coin transfers 2. "gas" (compute resource)
3/ WHAT IS GAS?
"gas" is a unit for measuring roughly the amount of compute resources required to process an operation.
Gas used in a transaction is computed deterministically -- a transaction will always need the same amount of gas on any node running a compliant Terra Core.