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Two Minute Papers July 16, 2026

The Impact of AI on Our Brain

For thousands of years, humans have been creating tools to make difficult tasks easier. A hammer is a great example of a tool that helps us build things without making us worse at building. However, the question remains, is artificial intelligence (AI) different? Since AI assists our brain, not our hands, it raises an uncomfortable question. What happens to the skills we outsource? Is AI brain rot real? To answer this, let's look at an experiment conducted with 52 junior software engineers. They were divided into two groups, one that used AI for coding and one that didn't.

The results of the study were surprising. The group that used AI finished their tasks about 2 minutes faster, which is around 8% faster. However, this result is not statistically significant. On the other hand, when they took a quiz, the group that used AI scored 50%, while the group that didn't use AI scored 67%. This is a huge difference, almost a two-grade difference. The AI group struggled with debugging, which is a critical skill for any software engineer. This suggests that relying too much on AI can make us lose the capability to fix problems that arise. The study also highlights the importance of using AI in a way that complements our existing skills, rather than replacing them. We should use AI to automate tasks that we already understand, and then ask questions to learn more. When something goes wrong, we should try to fix it ourselves before asking AI for help. This way, we can learn and remember things better.

In conclusion, the study shows that using AI can have both positive and negative effects. While it can help us with certain tasks, it can also make us lose some of our skills. Therefore, it's essential to use AI in a balanced way, sharpen our minds, and become better at what we do. We can use AI to reproduce research papers, train our own models, and run experiments. With the right tools and a little practice, we can become experts in our field. By being mindful of how we use AI, we can ensure that it helps us, rather than hinders us.

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