The ‘Hands Problem’ Holding Back the Humanoid Revolution

The Wall Street Journal highlighted the Robotic Manipulation and Mobility Lab, where Ioannis (John) Kymissis, Kenneth Brayer Professor of Electrical Engineering, supported the research. 

By
Columbia Engineering
October 27, 2025

Columbia Engineering Associate Professor Matei Ciocarlie was featured in a recent Wall Street Journal (WSJ) article about one of the final hurdles that technologists must clear to build humanoid robots. 

The article — “The ‘Hands Problem’ Holding Back the Humanoid Revolution” — showcases several emerging approaches to solving the difficult problem of building mechanical grippers that can accomplish tasks that are easy for human hands. 

Ciocarlie told WSJ reporter John Keilman that his teams’ technology — developed in collaboration with Ioannis (John) Kymissis, Kenneth Brayer Professor of Electrical Engineering and the School’s vice dean of infrastructure and innovation — relies on a four-fingered robot that gathers information by touch, not vision. 

“The robot essentially learns by doing,” says Ciocarlie, an associate professor of mechanical engineering.

Read the full article here or visit Columbia Technology Ventures to learn more about the sensor that enables precise tactile manipulation.


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