Zomato CEO Deepinder Goyal sparks buzz with mystery device on temple. What is it?

Deepinder Goyal later confirmed that the device was indeed designed to measure 'Brain Flow,' stating that he had used it for an extended period.

Zomato’s chief executive, Deepinder Goyal, became the focus of unexpected speculation on X after posting photographs from a visit to a school supported by FeedingIndia. Goyal had uploaded a series of images on his official account, remarking, “Was so wonderful and fulfilling to spread joy and happiness to children in a school supported by FeedingIndia.”

While the pictures were shared as part of an outreach activity, one frame drew disproportionate attention. In that image, Goyal appeared alongside Albinder Dhindsa, and a small metallic-looking object, gold in colour, could be seen close to his right temple. The object immediately prompted curiosity across the platform, prompting a surge of questions and jokes.

Comments under the post drifted into elaborate theories and humour. One user wrote, “Incredible insights. Simple yet groundbreaking. But the mystery of the infinity stone is still unresolved. Does this stone have any connection to anti gravity blood flow to the brain?” Another user asked whether the item was a sensor, adding, “So the mystery device is likely a sensor to measure blood flow to the brain?”

Goyal responded to the light-hearted exchange, remarking, “This could very well be the infinity stone.”

Was so wonderful and fulfilling to spread joy and happiness to children in a school supported by @FeedingIndia.

Thank you to the @letsblinkit Toys team and our partners at @Mattel, @Barbie, Skillmatics, @Imagimake, @smartivitylabs, pic.twitter.com/5cuoNDOgeV — Deepinder Goyal (@deepigoyal) November 14, 2025

Further remarks continued in the same tone. Someone commented, “Zomato Gold,” and another asked, “Deepinder Goyal sir what is in your near right eyebrow golden chip?” Others speculated further, including, “Bro, is that an Infinity stone on your face?” Another user, noticing the same detail, simply asked, “Cool stuff. But what’s this? Some new health accessory?”

Two days later, he addressed the speculation in a detailed post, clarifying that the item seen near his temple was a device created for experimental measurement of brain blood flow. The explanation followed closely after he publicly advanced what he called the “Gravity Aging Hypothesis,” in which he argued that reduced blood flow to the brain due to gravitational effects contributes to ageing.

I’m not sharing this as the CEO of Eternal, but as a fellow human, curious enough to follow a strange thread. A thread I can’t keep with myself any longer. It’s open-source, backed by science, and shared with you as part of our common quest for scientific progress on human… pic.twitter.com/q2q3tRj3Jd — Deepinder Goyal (@deepigoyal) November 15, 2025

In his earlier post, the 42-year-old had written, “Science already knows that Brain Flow is highly correlated to age, and an important biomarker for aging.” He expanded on the concept by promoting upside-down positions to counter gravitational impact, stating, “Inversions are already popular for lymphatic fluid drainage. We found that inversions are also the most effective way to counteract the negative effects of gravity on our brains.”

He claimed that the internal team’s trials suggested measurable improvement, adding, “Our biggest finding is that six weeks of using inversion tables for >10 minutes every day, led to a baseline increase of 7% in our daily average Brain Flow. This possibly nullifies 10 years of loss of Brain Flow with age.”

A day before this hypothesis was shared, he had been photographed with the small device, leading to conjecture that it was used to record brain-flow data. On LinkedIn, user Shubham Mishra posted the image and suggested that the concept of “inversion” could be linked to a new form of wearable aimed at tracking blood flow. Mishra even proposed the name “Temple” for such a product, citing the position of the device on the head.

Goyal later confirmed that the device was indeed designed to measure “Brain Flow,” stating that he had used it for an extended period. He explained, “While conducting research on the Gravity Aging Hypothesis, we had to make an experimental device to calculate Brain Flow accurately, real-time, and continuously. Been using it for a year, and I’ve been feeling that this could shape into an important wearable the world needs.”

He also maintained that its utility went beyond his hypothesis by adding, “Brain Flow is already well accepted as a biomarker for aging, longevity as well as cognition. So this device is useful and relevant even if the Gravity Aging Hypothesis turns out to be wrong.”

However, he rejected claims that the hypothesis was engineered to promote a commercial product. Goyal wrote, “Temple is going to be a small cute company, if at all. Nothing compared to Eternal.” He further stated, “We didn’t cook up the Gravity Aging Hypothesis to sell Temple. Not my game to lose the trust our customers have in me over a marketing gimmick.”