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I put an emit Event(uint256 value) inside a function with view. But I got the below compile error by using npx hardhat compile:

TypeError: Function declared as view, but this expression (potentially) modifies the state and thus requires non-payable (the default) or payable.

I wonder why emitting an event is considered as a state change as it's not really touching the internal state of the contract?

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Events don't change the state of the contract where they are emitted but they change the state of the whole blockchain.

In simple terms, a log (emitting an event) will make a change in the Transaction Receipts Root that is recorded in the header of a block and a adding new block is considered a change in the state of the blockchain.

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