Goyal listed the questions he plans to answer: why he left Eternal, what Temple is building, what its vision statement is and 'what do we have in store for humanity'. The Eternal founder has responded to the growing storm of criticism surrounding Temple—his eye-watering ₹85,000 brain-monitoring wearable - insisting that. Deepinder Goyal is hitting back at doctors calling his Rs 85,000 Temple wearable a scam.