标题： 可能的 Anthropic 支持用于衰变的宇宙：宇宙末日论的论证 显示英文标题

标题： Possible Anthropic Support for a Decaying Universe: A Cosmic Doomsday Argument

摘要： 我建议解决玻尔兹曼大脑问题的一个可能方法是，宇宙以天文数字的速率衰变，使得在200亿年内发生衰变的可能性很大。 这个建议的问题在于，它似乎需要在衰变机制中进行不自然的精细调节，这种调节无法通过人择原理来解释。 这里指出，如果在宇宙学测度问题中使用时空版本的体积平均方法，这将为即将来临的宇宙末日提供人择支持。 显示英文摘要

摘要： I have suggested that one possible solution of the Boltzmann brain problem is that the universe is decaying at an astronomical rate, making it likely to decay within 20 billion years. A problem with this suggestion is that it seems to require unnatural fine tuning in the decay mechanism that would not be explained anthropically. Here it is pointed out that if a spacetime version of volume averaging were used in the cosmological measure problem, this would give anthropic support for an impending cosmic doomsday.