James_Miller comments on The Great Filter is early, or AI is hard - Less Wrong

19 Post author: Stuart_Armstrong 29 August 2014 04:17PM

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Comment author: James_Miller 30 August 2014 05:54:15PM *  2 points [-]

We don't get to inject our priors onto the universe.

It is my understanding that if we have priors we absolutely must inject them onto the universe to formulate the best possible mental map of it.

Who knows why we exist so late. We just do. We don't get to extract information from that observation because we don't know the universe's priors.

But we do have lots of information about this. For example, the reason is not that earth is the only planet in our galaxy. And we have the potential of gaining lots more information such as if we find extraterrestrial life. I'm sure you don't mean to imply that if we do not have a complete understanding of a phenomenon we must ignore that phenomenon when formulating beliefs.

Comment author: [deleted] 02 September 2014 04:30:24PM *  2 points [-]

What I mean is that you are injecting assumptions about how you came to be a conscious entity on Earth in whatever year your mother conceived you, as opposed to any other place or time in the history of the universe.

Maybe it's true that for every sentient being you assign equal probability and then it would look very odd indeed that you ended up in a early stage civilization in an old, empty universe.

Or, maybe coherent worlds count as a single state, therefore greater probability mass is given to later civilizations which exist in a good deal many more Everett branches.

Or more likely it is something completely different. The very idea that I was 'born into' a sentient being chosen at random stinks of Cartesian dualism when I really look at it. It seems very unlikely to me that the underlying mechanism of the universe is describable at that scale.