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Jack Ma, founder of Chinese e-commerce firm Alibaba Group, attends a conference to commemorate the 40th anniversary of China's Reform and Opening Up policy at the Great Hall of the People in Beijing, Tuesday, Dec. 18, 2018. Ma hasn't been seen since he angered regulators with an October 2020 speech. That is prompting speculation about what might happen to the billionaire founder of the world's biggest e-commerce company. (AP Photo/Mark Schiefelbein)