Deepinder Goyal's Temple unveils biomarker measuring cost of being alive
What's the story
Deepinder Goyal has announced a breakthrough in health and fitness wearables with his start-up Temple. The company has discovered a new biomarker called 'Entropy.' The innovative metric is measured on the temple region of the human body and gives insight into its real-time metabolic cost. The idea behind this groundbreaking development is to help people understand how much energy their bodies are using at any given moment.
Functionality
How is Entropy measured?
Entropy is displayed as a live score on Temple's home screen, updating every second. The score ranges from 1 to 250, with lower scores indicating deeper states of rest and higher scores indicating intense physical exertion. Goyal noted that the lowest readings were recorded among experienced meditators during deep meditation sessions, while elite athletes showed the highest readings during peak performance.
Adaptability
Continuous measurement of metabolic cost
Temple claims that Entropy reflects the body's overall metabolic state and changes continuously in response to daily activities and physiological conditions. These include sleep, stress, exercise, meals, caffeine intake, cold exposure, meditation, and strength training. The metric is designed to provide a real-time view of these changes rather than relying on periodic measurements. However, Temple has not yet revealed the technology behind this biomarker or provided technical documentation explaining how the score is calculated.
Comparison
A better indicator of metabolic activity
Temple claims that Entropy is a better indicator of metabolic activity than heart rate. The company compared both metrics with a metabolic cart, a lab-grade device measuring energy expenditure. Goyal shared data showing Entropy had a correlation coefficient of r=0.93 across 100+ cardio sessions, while heart rate had r=0.55. This suggests that Entropy tracks metabolic cost more closely than heart rate alone.
New metrics
New metrics introduced
Temple has also introduced two new metrics: Entropy Maxima and Entropy Minima. Goyal explained that Entropy Maxima is the highest output a person can achieve during physical exertion, while Entropy Minima is the lowest resting metabolic state recorded by the body. The company suggests users should aim to increase their maximum capacity while lowering their resting metabolic cost over time.
Access
Early access applications now open
Temple is now accepting applications for early access through its website. However, the company has not yet revealed a commercial launch timeline or pricing details. Despite the interest from health and fitness enthusiasts, several users responding to Goyal's post have sought more information about the sample size, testing methodology, and scientific studies backing these claims.