Simulation hypothesis

Bostrom contends that at least one of the following statements is overwhelmingly likely to be true:

1. No civilization will reach a level of technological maturity capable of producing simulated realities.
2. No civilization reaching aforementioned technological status will produce a significant number of simulated realities, for any of a number of reasons, such as diversion of computational processing power for other tasks, ethical considerations of holding entities captive in simulated realities, etc.
3. Any entities with our general set of experiences are almost certainly living in a simulation.