Elon Musk may just be the 21st century’s Thomas Edison. The prolific inventor’s inventions have won him multiple entrepreneur and innovator-of-the-year awards — and are a regular topic of discussion ...

The billionaire launched his A.I.-powered version, Grokipedia, on Monday. By Kate Conger Reporting from San Francisco Elon Musk on Monday unveiled his own version of Wikipedia, the crowdsourced online ...