How a childhood obsession with Tinkertoys led to the future of modern supercomputing

Science · Published 20 October 2026 Swipe more like this →

In short: Danny Hillis, a pioneer of parallel processing, once built a computer out of children's construction toys. He later challenged the industry's skepticism by proving that thousands of simple, interconnected processors could outperform the world's most expensive supercomputers, fundamentally changing how we approach complex computation and artificial intelligence today.

Born in 1956, Danny Hillis was an inveterate tinkerer who spent his youth experimenting with mechanical systems. By the time he reached the Massachusetts Institute of Technology in 1974, his interests had shifted toward neurophysiology and the nature of human thought. Hillis hypothesized that cognition emerged from millions of neurons interacting simultaneously, a concept that stood in stark contrast to the sequential processing architecture that dominated computing at the time.

While studying under Marvin Minsky at the MIT Artificial Intelligence Laboratory, Hillis sought to build a machine that mirrored this parallel structure. Despite the prevailing wisdom that massively parallel systems were inherently inefficient, Hillis founded Thinking Machines Corporation in 1983 to prove otherwise. His flagship invention, the Connection Machine, utilized thousands of simple, one-bit processors working in unison. By 1985, the first 65,536-processor model was completed, offering computational power comparable to the high-end Cray-2 supercomputer at a fraction of the cost.

The legacy of Hillis’s work extends far beyond his initial research. His parallel processing concepts now underpin modern cloud computing and graphics processing units. After Thinking Machines filed for bankruptcy in 1994, Hillis transitioned into diverse roles, including vice president of research and development at Walt Disney Imagineering and co-founder of the R&D firm Applied Minds. His unconventional approach continues through the Long Now Foundation, where he is designing a mechanical clock intended to function for at least 10,000 years, reflecting his lifelong commitment to long-term, interdisciplinary problem-solving.

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