I've been studying the bitcoin soft forks like segwit and i dont understand why we needed to add vBytes. Is this because we dont want to Hard Fork? From my understanding segwit leaves a blink section in the transaction where the scriptsig was in order to keep backwards compatibility. Which would cause the new segwit transactions to be more bytes than the P2PKH so to make users use the new segwit transaction type they made vBytes? So segwit transactions dont count the scriptsig in the transaction size. It makes segwit seem smaller but its actually slightly larger than P2PKH in terms of actual block space.