According to @gregisenberg, leading AI products such as ChatGPT's Atlas, Perplexity's Comet, and Arc's AI agents are developing advanced AI browsers and agents aimed at streamlining online tasks like shopping, travel planning, and decision-making. However, detailed analysis of hundreds of real user journeys reveals that these tools may be misaligned with actual user behavior. Online shopping and planning are highly non-linear, driven by evolving preferences, serendipity, and criteria users often cannot articulate at the outset. This suggests that AI browsers, despite their technological sophistication, may face significant adoption challenges and limited business impact unless they better address real-world consumer decision-making patterns (source: @gregisenberg via X, 2025-10-22).