我目前最喜欢的阴谋论是，人类的寿命其实可以达到200多岁，但我们的环境太糟糕了，所以我们只能活到80岁。历史上所有关于人们活这么久的例子都被彻底抹除了，这样我们就不会意识到我们的生活方式有多堕落。

my current favorite conspiracy is that human lifespan is actually like 200+ years but our environment is so bad that we only live 80. History has been entirely whitewashed of examples of people living this long so that we don't realize how degraded our lifestyle is. @AlpacaAurelius