Plutonic Rainbows

GPT-5.2-Codex

OpenAI:

Today we’re releasing GPT‑5.2-Codex, the most advanced agentic coding model yet for complex, real-world software engineering. GPT‑5.2-Codex is a version of GPT‑5.2 further optimised for agentic coding in Codex, including improvements on long-horizon work through context compaction, stronger performance on large code changes like refactors and migrations, improved performance in Windows environments, and significantly stronger cybersecurity capabilities.

GPT‑5.2-Codex builds on GPT‑5.2’s strengths in professional knowledge work and GPT‑5.1-Codex-Max's frontier agentic coding and terminal-using capabilities. GPT‑5.2-Codex is now better at long-context understanding, reliable tool calling, improved factuality, and native compaction, making it a more dependable partner for long running coding tasks, while remaining token-efficient in its reasoning.

Disclosure Day

Steven Spielberg is heading back into the realm of UFOs and alien contact with his upcoming science-fiction film Disclosure Day, marking a clear return to the thematic territory he helped define with landmark movies like Close Encounters of the Third Kind and E.T. the Extra-Terrestrial.

Disclosure Day centers on a pivotal, irreversible moment: the confirmation that humanity is not alone. Rather than relying on spectacle, early material suggests the film will dwell on the tension and ambiguity of discovery — the quiet pause before everything changes.

The cast is led by Emily Blunt and Josh O’Connor, supported by Colin Firth, Eve Hewson, and Colman Domingo. Behind the camera, Spielberg directs from a story of his own, with screenplay by long-time collaborator David Koepp. Composer John Williams returns as well, extending his decades-long partnership with the director.

Universal Pictures has scheduled the theatrical release for 12 June 2026. Early reactions to the teaser trailer underline both excitement and speculation, with discussion online drawing parallels to Spielberg’s earlier work in the genre.

For fans of thoughtful science fiction and Spielberg’s signature blend of emotional grounding and high concept, Disclosure Day is shaping up to be one of next summer’s biggest and most talked-about movies.

Unarchived Memories

What people often call nostalgia is too small a word for what many of us feel when we look back at life before the internet. This is not a sentimental longing for youth, nor a refusal to accept the present. It is something more structural: a recognition that whole stretches of lived experience now sit outside the modern systems of memory.

Large parts of everyday life before the internet were never meant to be archived. They existed as lived experience rather than data. Conversations were not logged, rooms were not photographed, ordinary streets on ordinary days were not documented. What remains today is not hidden behind a paywall or lost to poor search results — it simply does not exist. The absence is not a personal failure to find it. The record genuinely stops.

The internet age inverted this relationship with memory. Almost everything now leaves residue: photographs, timestamps, metadata, surveillance, backups. The present is endlessly replayable. Yet this abundance comes at a cost. Experience has become thinner, more mediated, more performative. What existed before was dense precisely because it was not designed to be recalled, shared, or optimised. It existed fully in the moment, and then it was gone.

This creates a quiet but persistent asymmetry. The years that mattered most are the least recoverable. The present, by contrast, is exhaustively documented but often less meaningful. No future technology, no amount of money, and no hypothetical AI will reconstruct what was never stored. At best, fragments can be triangulated: a photograph here, a programme listing there, an address, a date, a weather report. But continuity — the sense of being there again — is irretrievably broken.

This is the uncomfortable truth: much of what mattered most survives only inside the people who lived it. And as time passes, even that archive degrades. Memories blur, witnesses disappear, and the final copies fade. That does not make those years less real. It makes them more so. They were not designed to be revisited. They were designed to be lived once.

If there is any consolation, it is a sober one. To have lived fully in a time that left so little behind is to have experienced something that cannot be replicated, simulated, or accessed later by anyone else. That loss is real. But so was the life that produced it.

Fixing CloudFront HTTP/2 Configuration

While reviewing a GTmetrix performance report, I noticed unusually high server response times despite having an A-grade score. The HAR file revealed that all resources were being served over HTTP/1.1 instead of HTTP/2, even though I believed HTTP/2 had been enabled previously. I queried my CloudFront distribution using the AWS CLI and confirmed the HttpVersion setting was indeed set to http1.1. I updated the distribution configuration to use HTTP/2, which enables multiplexing (allowing multiple requests over a single connection) and binary header compression. After the change propagated to CloudFront's edge locations, I ran a second GTmetrix test. The results were striking: Largest Contentful Paint dropped from 690ms to 167ms, Time to First Byte collapsed from 386ms to under 5ms, and the fully loaded time fell from 2 seconds to just 193ms. The improvement came from two factors working together: HTTP/2's multiplexing eliminated connection overhead, and the warmed CloudFront cache meant all resources were served directly from the edge location without origin fetches.

Packets to a Silent Modem

Speculative fiction often frames communication with the past as a problem of infrastructure rather than magic. In works such as William Gibson’s The Peripheral, the enabling technology is imagined as an advanced quantum system capable of exchanging information across time, usually by exploiting ideas drawn from quantum mechanics or many-worlds theory. The key move is not literal time travel, but data transfer: messages, control signals, or sensory input passing between eras. This allows the future to talk to the past through networks that resemble an internet stretched across timelines. Crucially, these stories impose rules — no matter crosses the boundary, only information does, and the moment communication begins, a new branch of reality forms. This framing gives the technology a cold, infrastructural plausibility that feels modern and computational rather than fantastical.

However, even within physics-inspired speculation, this idea collapses under closer scrutiny. Quantum mechanics does not permit usable communication backward in time. Quantum entanglement, often invoked in fiction, cannot transmit information at all — let alone into the past — without a classical channel that obeys normal causality. Proposed workarounds, such as closed timelike curves or exotic spacetime geometries, remain mathematical curiosities with no experimental support and, in many cases, imply energy conditions that appear physically impossible. Even if a future civilisation mastered quantum computing far beyond anything imaginable today, it would still be bound by causality as we understand it. At best, speculative models allow correlations across timelines, not conversations with people who already lived, acted, and died in a fixed historical world like 1990.

There is also a more fundamental, and bleaker, barrier: both the finality of causality and the sheer antiquity of the technology that defined 1990. The networks of that era were fragile, local, and transient — dial-up modems hissing over analogue phone lines, CRT monitors driven by decaying phosphors, spinning hard drives and magnetic tape that relied on constant power, maintenance, and human presence. Those systems were never stable endpoints in any enduring sense; their signals vanished the moment they were received, their protocols were crude, and their physical substrates have long since degraded, been erased, or thrown away. Even if physics permitted a message to be sent backward in time, there is nothing left to receive it: no addressable infrastructure, no listening process still running inside that causal frame. The past is not merely unreachable because time forbids it; it is unreachable because its technology was built to disappear. 1990 is not a dormant node awaiting reconnection — it is a powered-down, dismantled world, beyond reach not just in theory, but in every practical, material sense. The past is not offline; it is gone.