There is a huge difference between seeing a robot walking and a demonstration and understanding what really exists behind that machine. Recently, Foundation Robotics released the most detailed videos ever made about the Phantom MK1, its next-generation humanoid.

And at first glance everything seems extremely futuristic, sophisticated robots, hands inspired by human anatomy and an almost cinematic narrative about the future of automation, but when you start looking behind the scenes, you perceive something much more interesting happening. In one of the CEO's videos, Sunset Patac leads a tour of the so-called Robo Factory One, the company's headquarters in San Francisco. And the most curious detail is that despite the futuristic aesthetic, much of the construction of the robots still occurs manually.

Phantom MK1 has nearly 500 exclusive parts. Technicians appear manually assembling gears, fitting mechanical components piece by piece and soldering electronic parts, almost as in a high-tech artisanal workshop. And perhaps that reveals a little-discussed reality of the humanoid race, because behind the impressive demonstrations on social media, many of these companies are still in an almost experimental phase of manufacturing.

The future looks extremely advanced in the camera, but behind the scenes there is still a lot of human work holding everything together, even so, Phantom MK1 draws attention to some important technical details. The structure of the legs uses titanium rods developed to withstand the constant vibrations of locomotion, the head integrates six different cameras to offer a field of vision close to 360º and the mechanical heart of the system is something called cycloity actuators.

These actuators offer much greater energy efficiency than traditional systems and also allow something extremely important, physical sensitivity, in other words, the robot is able to sense external forces much more precisely, making movements and interactions more natural and safe. But the most fascinating part, in my opinion, is in the hands. The project uses artificial tendons directly inspired by human musculature, instead of placing motors inside the fingers, the actuators are located in the forearm pulling internal tendons, exactly as happens in the human body.

Foundation Robotics says it aims to produce thousands of these robots as early as 2026, but perhaps the greatest technological transformation of our era is not just in robots, but in the attempt to build a civilization capable of mastering new forms of energy.