The Thick Present

In the AI Story

The thick present emerged from Smolin's work on quantum gravity and cosmology, where the standard block-universe interpretation produces specific technical problems. If all moments exist equally, then the quantum mechanical wave function should describe the universe as a whole from some external vantage point — but there is no external vantage point, and quantum mechanics seems to require something like a process of actualization through which possibilities resolve into actualities. The thick present gives this process ontological status. Possibilities exist in the open future; actualities exist in the determinate past; and the resolution between them occurs in the thick present, which is where causation lives.

The concept has consequences that extend well beyond physics. In the thick present, the experience of deliberation is not an illusion — it is the phenomenology of genuine becoming. When a conscious creature weighs alternatives and chooses, the choice is a real event that determines which possibility becomes actuality. The alternative not chosen was not a hidden reality in some other branch of a multiverse; it was a possibility that the thick present's resolution did not actualize. This restores moral weight to choice, creative weight to art, and cosmological weight to the decisions made during moments of genuine novelty.

Segal's Orange Pill operates, mostly implicitly, within the thick present framework. The exhilaration and terror Segal describes — the vertigo of watching the ground shift — is the phenomenology of being a conscious creature engaged in genuine becoming, aware that the choices being made are not adjustments to a predetermined trajectory but constituents of a trajectory that does not yet exist. Smolin's physics gives this experience a foundation that metaphor alone cannot provide. The thick present is not a poetic device; it is the site where, on Smolin's view, the universe actually happens.

The concept also illuminates the distinction between genuine novelty and recombination. Recombination operates within a fixed space of possibilities — the deck of cards is shuffled, but no fifty-third card appears. Genuine novelty occurs when the thick present resolves in a way that introduces something the prior configuration did not contain. Whether current AI systems participate in the thick present or merely perform sophisticated recombination within predetermined possibility spaces is one of the deepest questions Smolin's framework poses.

Origin

The thick present concept was developed across Smolin's work in the 2000s and 2010s, receiving its fullest articulation in Time Reborn (2013) and subsequent essays. It draws on earlier philosophical traditions — particularly the process philosophy of Alfred North Whitehead and the pragmatism of Charles Sanders Peirce — but gives them a specifically physical grounding that earlier philosophical treatments lacked.

Key Ideas

Past is determinate, future is open. The ontological asymmetry between past and future is not an illusion but the deepest feature of physical reality.

The present has extent. Not a mathematical instant but a zone of ongoing becoming where causal processes resolve.

Genuine novelty lives here. The thick present is the site where possibilities become actualities, producing outcomes that were not predetermined.

Deliberation is real. The phenomenology of weighing alternatives is not a complicated illusion — it is the subjective experience of genuine becoming.

Constitutive choice. Choices made in the thick present are constitutive of the future they produce, not adjustments to a preexisting trajectory.