Derek Muller is a Canadian-Australian science communicator and media personality, widely recognized as the creator of the YouTube channel Veritasium. Launched in 2011, Veritasium has grown to over 20 million subscribers and accumulated 3.9 billion views as of January 2026, serving as his primary source of livelihood. The channel focuses on exploring counter-intuitive scientific concepts, often by engaging with the public and conducting experiments.