Meta’s Chief AI Scientist, Yann LeCun, has criticized the market’s enthusiastic response to DeepSeek’s new AI model announcement, suggesting the reaction was overblown. The article discusses how DeepSeek’s announcement of plans to release an AI model in 2025 led to significant market movements, particularly affecting Nvidia’s stock value. LeCun expressed skepticism about the market’s response, emphasizing that mere announcements of future AI developments shouldn’t trigger such dramatic market reactions. He pointed out that while DeepSeek’s work is commendable, the market’s response reflects a broader pattern of over-enthusiasm in AI-related news. The article highlights the growing trend of market sensitivity to AI developments and announcements, particularly in relation to companies working on large language models. LeCun’s comments underscore the importance of maintaining realistic expectations in the AI industry and the need for more measured responses to development announcements. The piece also touches on the broader context of AI market dynamics, where announcements of potential future developments can lead to significant market movements despite the absence of concrete results. This situation raises questions about market rationality and the current state of AI investment enthusiasm. The article concludes by suggesting that while AI advancement is important, market reactions should be more closely tied to actual achievements rather than future promises.