They Put Human Neurons in a Data Center. Now the Servers Have to Be Fed.

Singapore now has a 20-unit computing rack built around living human neurons growing on electrode-fitted silicon. The cells receive software-defined electrical inputs, return spikes that can control a simulated environment, and require nutrient medium, gas balance, temperature control and waste filtration to remain alive. This Pattern Nexus investigation separates the real NUS–DayOne–Cortical Labs prototype from the viral version, explains the closed-loop mechanism from first principles, tests the energy and learning claims, examines the ethics, and connects the living rack to the fly-brain mind-uploading pipeline.