Jack Ma is one of the world's most successful business people. And, until recently, he was also quite talkative.
The founder of China's giant company Alibaba often turned up in interviews or at conferences. In 2017, he spoke at the World Economic Forum.
"Every day is uncertain. The only certain day was yesterday," he said.
The man who said every day is uncertain now faces an uncertain fate. And the man who so often spoke in public has not appeared in months. He recently missed scheduled TV appearances.