Deepinder Goyal defends wearable device Temple

Deepinder Goyal, the founder of Temple, a brain-monitoring wearable device, addressed criticisms from Indian doctors on X. Defending the product, Goyal argued that if Temple were a scam, people would quickly realize it within days of use. He also highlighted that the device comes with a 14-day no-questions-asked return policy, ensuring customer satisfaction.

Goyal disclosed that $30 million was invested in developing the device, with $20 million being his personal contribution. He emphasized that building Temple was driven by a purpose beyond financial gain, stating, "I have enough to last for generations. My incentives are fully aligned with getting the science right." Comparing Temple to the fitness band Whoop, Goyal suggested that most wearable companies begin with internal studies, and Whoop published its first validation a few years after launching.

Goyal noted that Temple's standards were higher, and pre-prints were steps towards peer-reviewed publications. He assured that each claim was verifiable by individuals and institutions and expected to see independent studies emerge as the device becomes available. Goyal reiterated that Temple is a fitness tracker and wellness device, not a medical device, and promised clinical validation of its metrics if and when it occurs.

Despite Goyal's response, some doctors, such as Dr. Rishabh Jain, remained unconvinced, requesting scientific evidence and data to be reviewed by independent researchers, accusing Goyal of calling legitimate scientific scrutiny "rage."