深读100：山姆，亲手摧毁会员制神话；固态电池商业化面临挑战

Group 1 - Traditional restaurants are starting to sell fast food in response to the trend initiated by five-star hotels, indicating a shift in business strategy to adapt to market changes [1] - The fast food business model's effectiveness for traditional restaurants remains uncertain, raising questions about its potential for success [1] Group 2 - The value of software development is increasingly focused on value design rather than just technical implementation, emphasizing the importance of understanding user pain points and creating excellent user experiences [1] - Professionals with creative thinking and user experience design skills may hold more value than those solely proficient in programming [1] Group 3 - Sam's Club is facing challenges in maintaining its membership model in China, with recent events damaging its reputation and leading to a significant drop in member satisfaction to a five-year low [1] Group 4 - Solid-state battery technology has the potential to eliminate the shortcomings of traditional liquid electrolyte batteries, but it faces challenges in commercial viability due to higher production costs compared to conventional batteries [1]