How Many People Will There Be?

October 24th, 2011
ea, future
There are about 7 billion people alive right now [1], which is quite a lot. How many people [2] are there likely to be in the future? At the low end, something really bad could happen, and everyone could die. Or maybe there would be a collapse from which people would never recover. At the high end, we could colonize the galaxy. [3]

Just as I don't think it makes sense to value the happiness of people far away less than that of people close by, I can't see why I should value the happiness of future people less. If there might be a very large number of people in the future, it's possible that the most good I could be doing would be in making sure we don't wipe ourselves out before expanding off the earth.


[1] I need to update my internal stat from 6.5 billion.

[2] In don't strictly mean 'humans' here. A person who's mind had been uploaded to a computer and running there would count. As would, I think, and fully artificial intelligence.

[3] Or at the even higher end: tiny self replicating machines of human origin could colonize the universe.

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