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What Are Crypto Gas Wars?
Gas wars are one of the main causes of high transactions fees on Ethereum's blockchain.
Updated Apr 10, 2024, 2:16 a.m. Published Feb 23, 2022, 4:56 p.m.
A gas war is an auction for priority inclusion in an upcoming block of transactions to be validated on a blockchain. When demand is high, the price of a priority position can rocket.
According to Ethereum, "gas" refers to the computing power required to verify transactions in a proof-of-work consensus protocol. This computing power is the resource that fuels the network and all the applications built on it. Because of this, a base gas fee must be paid to cover this computing cost.
Read more: What are Ethereum Gas Fees?
On the Ethereum network, those seeking to complete transactions faster can offer a "priority tip" to validators, to incentivize the validators to include their transaction in the upcoming block earlier than others. The user can set this tip as they wish, which is then added to the base gas fee.
If there are a lot of transactions awaiting validation and users are nervous about missing an opportunity, they might offer significantly more than the base gas fee amount.
A gas war will not typically happen over regular payments, though. It is more likely when a non-fungible token (NFT) is put up for sale, for example, and there are a limited number available. If buyers lose the gas war, they may lose the opportunity to buy the NFT at the offered price altogether. This creates tension among users and often initiates a bidding war.
Read more: Buying NFTs During Presales and Public Mints: What to Know
Sometimes, the gas war pulls in more money than the actual asset being sold. When Time magazine sold a limited number of NFTs for 0.1 ETH each in September 2021, some buyers reportedly spent four times as much on gas as they did on the tokens just to secure them.
A side effect of the gas war is that a few rich buyers can sometimes squeeze out others who cannot afford gas fees so easily, cornering the market for the asset.
This doesn’t just impact those trying to buy assets in a particular sale. Everyone trying to complete transactions on the network at that time has to pay those fees or else wait and complete their transaction later – causing a knock-on effect throughout the wider Ethereum ecosystem.
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