TOKYO -- Tesla CEO and prolific tweeter Elon Musk has long highlighted the threat of declining birth rates, but over the weekend he singled out Japan with a warning that the country could one day "cease to exist."
Musk's motivation for making the remark remains unclear. But the tweet to his 90 million followers has shaken Japan's Twitterati and cast a fresh spotlight on the demographic woes that weigh on the nation's economic outlook.
