Now that I've seen how he lives, I know why he needs so much money.
看过了他的生活状态,我现在才知道他为什么需要那么多钱。
do in fact run out of energy in accordance with the second law of thermodynamics (whether the whole universe does so is a moot point at present).
也都会消耗完其能量(整个宇宙是否如此,目前尚有争论)。