Federico Faggin

An icebreaker

The physicist who led the design of the first commercial microprocessor had a sudden experience of light and love in 1990 that he says shattered his materialist worldview. He now argues, with a physicist collaborator, that consciousness is fundamental to reality, not a brain product.

Ask one of these · tap to take it

Could one unexpected experience change what you believe is real?
Is consciousness something a system has, or something it's made of?
Should an inventor's authority on chips carry over to questions about mind?
What would convince you either way?

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Worth knowing · 1 of 5

What is he actually known for first?

In 1971 he led the design of the Intel 4004, the first commercial microprocessor, after inventing the silicon-gate technology that made it possible. He later co-founded Synaptics and helped develop the technology behind laptop touchpads and touchscreens.

Worth knowing · 2 of 5

What happened to him in 1990?

He says he experienced a sudden, overwhelming burst of white light and love while on a family trip, an event lasting about a minute that he describes as recognizing himself as both the observer and the observed.

Worth knowing · 3 of 5

What does he now argue about consciousness?

In his 2024 book he argues consciousness is not produced by the brain but is a fundamental property of reality itself, present in the same primordial layer that gives rise to space, time, and matter.

Worth knowing · 4 of 5

What's the theory he built with a physicist colleague?

Together with a quantum physicist he proposes that conscious experience corresponds to certain quantum states, and that free will and creativity are only possible in a nonclassical, quantum layer of the universe, not in ordinary deterministic matter.

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How does this land with other physicists?

Reviewers note the claim is speculative and, so far, not testable in a way mainstream physics accepts. Separately, other physicists have argued more broadly that known physics leaves no room for consciousness to be a new causal ingredient in nature.

Words to know

Quantum Information PanpsychismHis and his collaborator's name for the theory that consciousness is a fundamental, quantum property of reality.

PanpsychismThe broader philosophical view that consciousness, in some form, is present throughout nature, not unique to brains.

Silicon-gate technologyA chip-manufacturing method he helped invent in 1968 that made the modern microprocessor possible.

More words

IrreducibleThe title of his 2024 book making the public case for consciousness as fundamental rather than emergent.

A voice · 1 of 3

Federico Faggin · Physicist and microprocessor designer

He argues, drawing on a 1990 experience he says shattered his materialist worldview, that consciousness is an irreducible property of nature present from the start, not something that emerges later from purely physical processes in the brain.

A voice · 2 of 3

Giacomo Mauro D'Ariano · Quantum physicist and theory collaborator

Working with Faggin, he helped formalize the claim that conscious experience corresponds mathematically to a pure quantum state, proposing this as a testable framework rather than pure philosophy.

A voice · 3 of 3

Sean Carroll · Physicist who has argued against consciousness-based physics

He has argued that known physics supports the causal closure of the physical world, meaning physical events have purely physical causes, leaving no room, without overturning quantum field theory, for consciousness to act as a new causal influence.

A line to leave them with

A chip he built runs on rules. What runs the rules, he still wonders.