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Artificial intelligence might be closer to mimicking human brain function than previously believed, according to a new study published on arXiv (https://arxiv.org/abs/2504.0863). Researchers posit that while individual biological neurons have complex capabilities, neural networks within the brain may not fully exploit them. This suggests that simplified computations, similar to those used in artificial neural networks (ANNs), can effectively approximate the behavior of real neurons. The research challenges the common assumption that artificial and biological neural networks differ significantly in their core functionality, suggesting the primary difference lies in the underlying substrate rather than computational abilities. This finding strengthens the theoretical possibility of AI replicating human-level intelligence, implying that there are potentially no fundamental functional barriers preventing AI from achieving this milestone.