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Ryan Collison

I write about cool science and share it here.

Neuromorphic chip implementing active inference

Neuromorphic Active Inference: Hardware for the Free Energy Principle

Neuromorphic Active Inference: Hardware for the Free Energy Principle Series: Neuromorphic Computing | Part: 7 of 9 There's a strange convergence happening at the intersection of theoretical neuroscience and hardware engineering. On one side, Karl Friston's Free Energy Principle claims that all living systems—from single cells

Energy comparison between GPU clusters and neuromorphic chips

The Energy Crisis of AI: Why Neuromorphic Is Inevitable

The Energy Crisis of AI: Why Neuromorphic Is Inevitable Series: Neuromorphic Computing | Part: 6 of 9 Your pocket might hold more computing power than the Apollo program, but it can't run GPT-4. Your brain runs on 20 watts—about the same as a dim lightbulb—while performing

Liquid neural network with continuous-time dynamics

Liquid Neural Networks: Computation That Flows Like Water

Liquid Neural Networks: Computation That Flows Like Water Series: Neuromorphic Computing | Part: 5 of 9 In most neural networks, time is a fiction. You feed in data, the network processes it through fixed weights, you get an output. Time is just a sequence of discrete steps—frames in a movie,

Event-based camera responding to motion changes

Event-Based Sensing: Cameras That See Like Eyes

Event-Based Sensing: Cameras That See Like Eyes Series: Neuromorphic Computing | Part: 4 of 9 Your phone's camera is lying to you. Not about what it sees, but about how seeing works. Every frame—30, 60, 120 times per second—your camera captures everything in its field of

Intel Loihi neuromorphic processor architecture

Intel Loihi and the Race for Brain-Like Silicon

Intel Loihi and the Race for Brain-Like Silicon Series: Neuromorphic Computing | Part: 3 of 9 In 2017, Intel did something unusual for a chip company obsessed with faster clock speeds and denser transistors. They announced a processor that thinks in spikes, sleeps between events, and gets more efficient the

Biological neuron firing spikes with precise timing

Spikes Not Floats: How Biological Neurons Actually Compute

Spikes Not Floats: How Biological Neurons Actually Compute Series: Neuromorphic Computing | Part: 2 of 9 If you've ever taken an intro AI course, you've been lied to about neurons. Not maliciously—the simplification was necessary. But the gap between artificial neural networks and biological neurons isn&

Spiking neural network chip architecture with event-driven computation

The Chips That Think Like Brains: Inside the Neuromorphic Computing Revolution

The Chips That Think Like Brains: Inside the Neuromorphic Computing Revolution Series: Neuromorphic Computing | Part: 1 of 9 In 1986, Carver Mead stood before a room of engineers at Caltech and made a prediction that sounded like science fiction: we would one day build computer chips that compute the way