Hi! I just finnished the Bitcoin 101 course and there is one question that is nagging me.
When a block is stale and all the transactions returns to the mempool, is it posseble to reverse the transaction?
If a waiting time of 5-6 blocks is needed to verify the transaction isn’t on a fork, why don’t the Bitcoin developers design a safety system that makes the transactions in the mempool irreversable? Then it would not be needed to wait for a miner to add the transaction in a block for conformations.
PS: Don’t hate me, I´m just a beginner