rortian comments on Less Wrong Q&A with Eliezer Yudkowsky: Video Answers - Less Wrong
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20: What is the probability that this is the ultimate base layer of reality?
Eliezer gave the joke answer to this question, because this is something that seems impossible to know.
However, I myself assign a significant probability that this is not the base level of reality. Theuncertainfuture.com tells me that I assign a 99% probability of AI by 2070 and it starts approaching .99 before 2070. So why would I be likely to be living as an original human circa 2000 when transhumans will be running ancestor simulations? I suppose it's possible that transhumans won't run ancestor simulations, but I would want to run ancestor simulations, for my merged transhuman mind to be able to assimilate the knowledge of running a human consciousness of myself through interesting points in human history.
The zero one infinity rule also makes it seem more unlikely this is the base level of reality. http://catb.org/jargon/html/Z/Zero-One-Infinity-Rule.html
It seems rather convenient that I am living in the most interesting period in human history. Not to mention I have a lifestyle in the top 1% of all humans living today.
I believe this is a minority viewpoint here, so my rationalist calculus is probably wrong. Why?
You are suggesting a world with much more energy then the one that we know. It seems you should assign a lower probability to there being a much higher energy universe.
By the zero one infinity rule, I also think it likely that there are infinite spacial dimensions. Just a few extra spacial dimensions should give you plenty of computing power to run a lower dimensional universe.
Wow, I really am curious why you think this would apply to spacial dimensions.