"Gas fees" confuse a lot of newcomers to crypto. Here's the short version of what you're actually paying for.
Gas is the fee paid to the network (miners/validators) to process and confirm your transaction. Think of it as a processing fee that goes up when the network is busy and down when it's quiet — it's supply and demand for limited block space, not an arbitrary platform fee. Why fees spike – During high network activity (popular NFT drops, major price moves), everyone competes for limited transaction space, pushing fees up. Why timing matters – Transacting during low-activity periods (often weekends or certain hours) can save significantly on fees. Why it varies by chain – Different blockchains have very different fee structures; some are consistently cheaper than others by design. What's the highest gas fee you've ever paid, and did you still go through with the transaction?