And the universe is so old that unless we were the very first civilization ever to evolve, we should have some evidence of their existence by now.
و عمر جهان آنقدر زیاد است که باید تا الآن شواهدی از وجود آن‌ها دیده باشیم، مگر این که ما نخستین تمدن تکامل یافته در جهان باشیم.