Why does the target block have to be in the future?

[PB]

On the github, it states that “The block should always be a future block, never the current one.”

Why cant we target the current block? Isnt the current block the pending block meaning that we can add to it?

[bhaki]

Hi,
Thank you for reporting. But please provide more context when you raise any question.
I assume you are quoting this right ?

In this context, Current block is basically already included on chain.Target block is the next block that is to be produced.