为什么 AI 搞不定体力活——对话清华大学刘嘉：这才是生物智能最难攻克的“万里长征”

Core Viewpoint - The article discusses the evolution of artificial intelligence (AI) and its intersection with brain science, emphasizing the importance of large models and the historical context of AI development, particularly during its "winters" and the lessons learned from past mistakes [5][18][27]. Group 1: Historical Context of AI - AI experienced significant downturns, known as "AI winters," particularly from the late 1990s to the early 2000s, which led to a lack of interest and investment in the field [2][3]. - Key figures in AI, such as Marvin Minsky, expressed skepticism about the future of AI during these downturns, influencing others like Liu Jia to pivot towards brain science instead [3][14]. - The resurgence of AI began around 2016 with breakthroughs like AlphaGo, prompting a renewed interest in the intersection of brain science and AI [3][14]. Group 2: Lessons from AI Development - Liu Jia reflects on his two-decade absence from AI, realizing that significant advancements in neural networks occurred during this time, which he missed [14][15]. - The article highlights the importance of understanding the "first principles" of AI, particularly the necessity of large models for achieving intelligence [22][27]. - Liu Jia emphasizes that the evolution of AI should not only focus on increasing model size but also on enhancing the complexity of neural networks, drawing parallels with biological evolution [24][25]. Group 3: Current Trends and Future Directions - The article discusses the current landscape of AI, where large models dominate, and the importance of scaling laws in AI development [27][30]. - It notes the competitive nature of the AI industry, where advancements can lead to rapid obsolescence of existing models and companies [36][39]. - The article suggests that future AI development should integrate insights from brain science to create more sophisticated neural networks, moving beyond traditional models [25][50].