Analyze Nick Bostrom's trilemma in the Simulation Argument. Detail the following three possibilities: 1) All civilizations at our level of technological development go extinct before reaching a post-human stage. 2) The proportion of post-human civilizations interested in running simulations of their ancestors is negligibly small. 3) We are almost certainly living in a simulation. Discuss the implications of each hypothesis and provide a critical evaluation of the argument's validity based on probability and computational limits.