Zomato founder Deepinder Goyal has drawn significant attention for wearing an experimental device called 'Temple' during a podcast appearance. Developed under his ventures, including Eternal and Continue Research, the sleek, silver gadget is designed for real-time, continuous monitoring of brain blood flow. Goyal, who has been testing it for over a year, describes it as a tool for preventive health and a key component in his research into brain health and ageing theories.