TLDR
Gas fees are the amount of ETH tokens a user pays to perform an action on the decentralized network. Gas charges on the network hit an all-time high of $373 in February of 2021. Gas fees have risen to insane heights since the DeFi boom in the summer of 2020. As more investors try their hand at DeFi, gas fees are shooting over the roof, making engaging with decentralized apps uneconomical for most users. Developers have implemented various solutions to curb gas fee hikes before the advent of Layer 2 scaling solutions.via the TL;DR App
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