Group 1 - The core viewpoint of the article emphasizes Elon Musk's criticism of lidar technology, highlighting its limitations compared to Tesla's camera-based perception system [1][3] - Tesla has made a strategic shift to a pure vision approach, abandoning the "camera + radar" combination in favor of a solely camera-based system known as "Tesla Vision" [1][3] - Musk argues that reliance on lidar and radar can lead to "sensor conflict," which may decrease safety due to inconsistent data from different sensors, citing this as a reason why Waymo vehicles cannot operate on highways [3] Group 2 - Musk points out that lidar struggles in adverse weather conditions, such as snow and rain, which affects navigation capabilities, further explaining why Waymo vehicles cannot drive in heavy rain [3] - Tesla's approach to autonomous driving technology significantly differs from many companies in the industry, with competitors like Waymo relying heavily on lidar technology [3] - Musk revealed that Tesla's Model S and Model X previously used high-resolution radar, but the performance was deemed inferior to passive optical devices (cameras), leading to the decision to discontinue radar use [4]