1. take mostly horizontal part 2. infer vertical

This post likely discusses a cognitive or computational principle where one should primarily focus on horizontal (broad, general, or foundational) aspects of a problem or system, then use inference or reasoning to determine the vertical (detailed, specific, or derivative) elements. Gary Marcus, known for his work on AI cognition and reasoning, may be advocating for this as an efficient approach to learning, problem-solving, or AI system design.

Source: Gary Marcus (X) | 2026-05-09