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Owen Murphy

99 karmaJoined Seeking workWorking (0-5 years)San Francisco, CA, USA

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Software engineer and recent graduate from UC Berkeley with degrees in Computer Science and Economics. I write a blog at https://ohmurphy.substack.com/.

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The point about accounting for uncertainty is very well taken. I had not considered possible asymmetries in the effects of uncertainty when writing this.

On longtermism generally, I think my language in the post was probably less favorable to longtermism than I would ultimately endorse. As you say, the value of the future remains exceptionally large even after reduction by a few orders of magnitude, a fact that should hopefully be clear from the units (trillions of life-years) used in the graphs above.

If I have time in future, I may try to create new graphs for sensitivity and value that take into account uncertainty.

That's an interesting point. I'm a bit skeptical of modeling risk as constant per unit volume since almost all of the volume bordered by civilizations will be empty and not contributing to survival. I think a better model would just use the number of independent/disconnected planets colonized. I also expect colonies on other planets to be more precarious than civilization on Earth since the basic condition of most planets is that they are uninhabitable. That said, I do take the point that an interstellar civilization should be more resilient than a non-interstellar one (all else equal).

Kidney donation might be an option. There are a few different posts about it on the forum (it has its own tag).

Example: https://forum.effectivealtruism.org/posts/yTu9pa9Po4hAuhETJ/kidney-donation-is-a-reasonable-choice-for-effective