Open Problems in Mechanistic Interpretability
Lee Sharkey, Bilal Chughtai, Joshua Batson, Jack Lindsey, Jeff Wu, Lucius Bushnaq, Nicholas Goldowsky-Dill, Stefan Heimersheim, Alejandro Ortega, Joseph Bloom, Stella Biderman, Adria Garriga-Alonso, Arthur Conmy, Neel Nanda, Jessica Rumbelow, Martin Wattenberg, Nandi Schoots, Joseph Miller, Eric J. Michaud, Stephen Casper, Max Tegmark, William Saunders
2025-01-29

Summary
This paper talks about mechanistic interpretability, which is a way to understand how artificial intelligence (AI) systems, especially neural networks, work from the inside out. It's like trying to figure out how a complex machine operates by looking at all its parts and how they work together.
What's the problem?
Even though we've made some progress in understanding AI systems, there are still many challenges. We don't have perfect methods to look inside these systems, and we're not sure how to use what we learn to make AI safer and more trustworthy. It's like having a powerful tool but not fully understanding how to use it safely or effectively.
What's the solution?
The paper doesn't offer a specific solution, but instead points out areas where more work is needed. It suggests that researchers should focus on improving their methods for understanding AI, figuring out how to apply what they learn to real-world problems, and dealing with the broader impacts of this research on society. It's like creating a to-do list for scientists working in this field.
Why it matters?
This matters because as AI becomes more powerful and more involved in our daily lives, we need to make sure we can trust it and use it safely. Understanding how AI 'thinks' could help us make it more reliable, fix problems when they occur, and even teach us new things about intelligence itself. It's like learning to read the 'mind' of a very smart computer so we can work better with it and make sure it does what we want it to do.
Abstract
Mechanistic interpretability aims to understand the computational mechanisms underlying neural networks' capabilities in order to accomplish concrete scientific and engineering goals. Progress in this field thus promises to provide greater assurance over AI system behavior and shed light on exciting scientific questions about the nature of intelligence. Despite recent progress toward these goals, there are many open problems in the field that require solutions before many scientific and practical benefits can be realized: Our methods require both conceptual and practical improvements to reveal deeper insights; we must figure out how best to apply our methods in pursuit of specific goals; and the field must grapple with socio-technical challenges that influence and are influenced by our work. This forward-facing review discusses the current frontier of mechanistic interpretability and the open problems that the field may benefit from prioritizing.