the Doomsday Argument seems plausible, but assuming you are selected uniformly at random from all possible humans results in a hidden assumption that the future

the Doomsday Argument seems plausible, but assuming you are selected uniformly at random from all possible humans results in a hidden assumption that the future can have an effect on the past, which doesn't seem reasonable. I realize this PDF from 2005 by a member of "The Futurists Guild" may not seem like a reliable academic source, but it lays out some good thought experiments on the topic. http://cogprints.org/4045/1/Causality.pdf http://cogprints.org/4045/1/Causality.pdf