I'm a complete philosophical novice so I'm sorry I can't enlighten you. Seems real interesting though. What does he mean by "post human"? If I had to hazard a guess, I'd say it's a stage where humans have surpassed everything that makes them human; emotion, compassion etc. Am I close or completely off?

Also, the part about living in a computer simulation is essentially "The Matrix" isn't it? If so, it seems to me that the only argument against it goes something like "its so absurd it can't be true". Similar problem to the God question. We can't absolutely prove it one way or another. However, unlike the God question, there is no evidence to support this argument either way. There is no scientific evidence (to my knowledge) suggesting that we are part of such a simulation, nor is there any suggesting otherwise.