Well, my point was really more that the orignal claim was explicitly talking about "at the end" of the timeframe, so we're talking about near death -- where put

Well, my point was really more that the orignal claim was explicitly talking about "at the end" of the timeframe, so we're talking about near death -- where putting weight on immediate gratification is harder to justify. But to address your question: people 'take the limit' and argue that life is just meaningless in every way all the time. If it were true, you shouldn't be bothered to make that effort in the first place. Obviously your actions matter to other people by the sheer virtue of the fact that you're optimizing for it. if you weren't, you wouldn't have bothered to ask the question. Sometimes life is what you actually do, not merely what you think.