After reflecting on the transient nature of the past as it exists in people's collective memories, Frieren unexpectedly runs into a sworn enemy.
They can't resolve things that way. 
That's why it's pointless.
.لا يمكنهم حلّ الأمور بتلك الطريقة. لذلك السبب لا فائدة
Es inútil porque no van a resolver nada.
Eles não são capazes de fazê-lo.
Por isso, é inútil.
Не удастся —
и именно потому пустая.