Fast and slow thinking became the default metaphor for human cognition, contrasting intuitive heuristics with deliberate reasoning. This dual-process view helped dismantle the myth of the perfectly rational individual and revealed systematic patterns of bias in judgment and decision-making. Yet as intelligence becomes hybrid — distributed across humans, machine models, autonomous agents and digital institutions — the language of two inner systems is no longer sufficient. The critical unit of analysis shifts from the individual mind to the field in which minds and machines operate. This article proposes field intelligence as a temporal and structural extension of fast and slow thinking. We first revisit dual-process theory and its main critiques, emphasizing its individual focus and its difficulty in capturing hybrid, socio-technical cognition. We then introduce a temporal stack for hybrid minds, from substrate-level constraints (System 0) to fast intuition (System 1), deliberate reasoning (System 2) and a field layer of rules, incentives and orchestrated agents (System 3). In this stack, time becomes a governance resource rather than merely a processing parameter. Building on this, we model the distribution of “P-like” and “NP-like” work across fields as a symbolic conservation principle: exploration and verification must co-exist within a bounded epistemic budget. Field intelligence is defined as the capacity of a system to allocate tempo and complexity wisely — letting fast modes explore, while slower structures arbitrate, ratify and rewrite the rules of the game. The result is a field-first blueprint for governing hybrid intelligence beyond the limits of traditional dual-process theory.