Lundgren and Kudlek (2024), in their recent article, discuss several challenges to longtermism as it currently stands. Below is a summary of these challenges.
The Far Future is Irrelevant for Moral Decision-Making
- Longtermists have not convincingly shown that taking the far future into account impacts decision-making in practice. In the examples given, the moral decisions remain the same even if the far future is disregarded.
- Example: Slavery
We didn’t need to consider the far future to recognize that abolishing slavery was morally right, as its benefits were evident in the short term. - Example: Existential Risk
The urgency of addressing existential risks does not depend on the far future; the importance of avoiding these risks is clear when focusing on the present and the next few generations.
- Example: Slavery
- As a result, the far future has little relevance to most moral decisions. Policies that are good for the far future are often also good for the present and can be justified based on their benefits to the near future.
The Far Future Must Conflict with the Near Future to be Morally Relevant
- For the far future to be a significant factor in moral decisions, it must lead to different decisions compared to those made when only considering the near future. If the same decisions are made in both cases, there is no need to consider the far future.
- Given the vastness of the future compared to the present, focusing on the far future, risks harming the present. Resources spent on the far future could instead be used to address immediate problems like health crises, hunger, and conflict.
We Are Not in a Position to Predict the Best Actions for the Far Future
- There are two main reasons for this:
- Unpredictability of Future Effects
It's nearly impossible to predict how our actions today will influence the far future. For instance, antibiotics once seemed like the greatest medical discovery, estimating the long-term effects of medical research in 10,000 years—or even millions of years—is beyond our capacity. - Unpredictability of Future Values
Technological advancements significantly change moral values and social norms over time. For example, contraceptives contributed to shifts in values regarding sexual autonomy during the sexual revolution. We cannot reliably predict what future generations will value.
- Unpredictability of Future Effects
Implementing Longtermism is Practically Implausible
- Human biases and limitations in moral thinking lead to distorted and unreliable judgments, making it difficult to meaningfully care about the far future.
- Our moral concern is naturally limited to those close to us, and our capacity for empathy and care is finite. Even if we care about future generations in principle, our resources are constrained.
- Focusing on the far future comes at a cost to addressing present-day needs and crises, such as health issues and poverty.
- Implementing longtermism would require radical changes to human psychology or to social institutions, which is a major practical hurdle.
I'm interested to hear your opinions on these challenges and how they relate to understanding longtermism.
Any state that isn't very persistent. For example, an Israel-Gaza ceasefire. We could achieve it, but from history we know it's unlikely to last very long. The fact that it is unlikely to last makes it less desirable to work towards than if we were confident it would last a long time.
The extinction vs non-extinction example is the classic attractor state example, but not the only one. Another one people talk about is stable totalitarianism. Imagine China or the US can win the race to superintelligence. Which country wins the race essentially controls the world for a very long time given how powerful superintelligence would be. So we have two different attractor states - one where China wins and has long-term control and one where the US wins and has long-term control. Longtermist EAs generally think the state where the US wins is the much better one - the US is a liberal democracy whereas China is an authoritarian state. So if we just manage to ensure the US wins we would experience the better state for a very long time, which seems very high value.
There are ways to counter this. You can argue the states aren't actually that persistent e.g. you don't think superintelligence is that powerful or even realistic in the first place. Or you can argue one isn't clearly better than the other. Or you can argue that there's not much we can do to achieve one state over other. You touch on this last point when you say that longtermist interventions may be subject to washing out themselves, but it's important to note that longtermist interventions often aim to achieve short-term outcomes that persist into the long-term, as opposed to long-term outcomes (I explain this better here).
Saving a life through bed nets just doesn't seem to me to put the world in a better attractor state which makes it vulnerable to washing out. Medical research doesn't either.