The Horizon: Bounded, Contested, Algorithmic

Signals | Week ending 28 March 2026 - Middle East deadlines and the prospect of $150 oil; EU and Australia move closer; a significant AI breakthrough; and this week’s strategic and systemic insights

In this edition: Key signals of the week; strategic and systemic insights; what I am reading; and one last thing.

Top Signal: The Rolling-Day Freeze and the Prospect of $150 Oil

The most critical geopolitical signal this week comes from the ongoing fragile intersection of geopolitics and energy markets in the Middle East, via social media. Last weekend, (while the main financial markets were closed), US President Trump escalated matters by threatening Iran on his social media platform:

“If Iran doesn’t FULLY OPEN, WITHOUT THREAT, the Strait of Hormuz, within 48 HOURS from this exact point in time, the United States of America will hit and obliterate their various POWER PLANTS, STARTING WITH THE BIGGEST ONE FIRST!…”

However, he reversed course on Monday by signalling that he would temporarily hold off on his threat of strikes against Iranian energy infrastructure for five days, citing:

“…VERY GOOD AND PRODUCTIVE CONVERSATIONS REGARDING A COMPLETE AND TOTAL RESOLUTION OF OUR HOSTILITIES IN THE MIDDLE EAST…”

However, during this five-day freeze, there were also reports of a buildup of US troops towards the region, with the Pentagon reportedly preparing to deploy thousands of troops from the Army’s 82nd Airborne Division, in addition to the thousands of Marines already en route. What they will do when they get there and what that means for the length of this conflict remains to be determined. This riding of both horses, receptiveness to talks while reinforcing military deployment, is a classic mix of hard‑power signalling plus diplomatic window‑dressing.

Meanwhile, initial reports out of Iran this week suggest they were not actually in negotiations, with officials there painting the US President’s announcement as “backing down” in a potentially face-saving move. During the week, the Iranian foreign minister, Abbas Araqchi, was reported to have said that his country was reviewing a U.S. proposal to end hostilities but still had no intention of holding talks. However, he also reportedly confirmed this week that indirect communications had been exchanged through intermediaries. The theatre of how all this plays out to the world matters to both sides, because domestic audiences and regional allies are watching the performance as much as the substance.

The disruption to the supply of oil and gas is the key concern for business, but also for markets, which initially reacted positively to the reprieve. However, as the week went on, it was still unclear what would happen this weekend (and at the opening bell on Monday) if no agreement was in place by the time this latest US ultimatum expired. However, on Thursday, with the war still ongoing, President Trump rolled over his deadline for Iran to open the Strait of Hormuz again by another 10 days (to Monday, 6 April, 8 P.M., ET), citing ongoing talks with Iran that are “going very well”.

It remains a very volatile situation, and as a result, markets are also likely to remain volatile. The underlying signal is that the situation is erratic and highly uncertain, which is surely stretching investment managers’ resilience. What matters most for the global economy is who will ultimately control the Strait of Hormuz and on what terms passage will be allowed. Who will control Iranian oil is also a significant factor.

Interestingly, in a signal of what the marketplace thinks the stakes could be for the global economy, Larry Fink, the CEO of BlackRock, the world’s largest asset manager, speaking with the BBC on Wednesday, framed the stakes clearly: he warned that a scenario where there is a failure to secure a durable de‑escalation could allow prices to climb toward $150 per barrel (for years), risking a global recession. Painting such a scenario is sure to raise an eyebrow in central banks and within credit markets. One can see how that happens once we layer on higher insurance costs, extra buffer capacity, rerouting deliveries, and a darker sentiment in credit and equity markets.

In another scenario, where Iran becomes a country that participates in the world again and is accepted by the international community, he said, one could paint a picture of oil prices being lower than the start of the conflict over three weeks ago.

What we have seen play out this week is a situation where the U.S. reserves the right to use social media to set energy‑security deadlines for the Iranian regime, while financial markets must live with the resulting ‘on‑off’ risk of a major supply shock. President Trump on Truth Social, President Trump on Truth Social+1, President Trump on Truth Social+2, The Hill, Reuters, Politico, BBC Audio, The Guardian

Key Signals

EU and Australia Free Trade and Security Agreement

After 8 years of negotiations, Australia and the European Union struck what has been described as a landmark trade deal this week that will lead to both sides reducing tariffs on most products and services to zero and expanding trade across a wide range of areas, including machinery, motor vehicles, chemicals, financial services, food and wine, education, and critical raw materials.

It is another win for the idea of an open (if bounded) and rules-based approach to international trade (despite protests in parts of the EU over Mercosur and other deals), and it follows the EU’s recent finalisation of free trade agreement negotiations with Indonesia (September 2025) and India (January 2026) in the strategically important Indo-Pacific region. The EU trade agreement with South America’s Mercosur bloc of countries was also agreed earlier this year. Australia, in recent years, has also signed free trade agreements with the UAE, the UK, and a Regional Comprehensive Economic Partnership Agreement with 14 other Indo-Pacific countries. This week’s agreement supports both sides’ ambition to diversify trade, de-risk supply chains, bolster competitiveness, and strengthen certainty and resilience against economic and geopolitical shocks in an increasingly volatile international trade environment.

The EU and Australia already have a strong trade relationship, with over €89.2 billion in goods and services traded annually, and this is expected to grow significantly. The EU expects annual exports to Australia to increase by 33% over the next decade, resulting in an expected €4b increase to EU GDP by 2030. Australian companies, service providers, and farmers will see most of their exports enter the EU tariff-free. However, some volume restrictions will apply to certain agricultural products (such as red meat) and protected geographical indications, which Australian farmers are “extremely disappointed” about (It is worth remembering that it was agricultural concerns on the Australian side that reportedly collapsed the prospect of agreement back in 2023).

Collectively, the EU is the larger party to the agreement, being among the world’s biggest economies, with around 450 million people. This brings opportunity for Australian companies, who are expected to have better access to bid for lucrative European government contracts under this agreement. Meanwhile, Australia is a major producer of aluminium, lithium, and manganese, which are all essential imports for the EU as it seeks to diversify its supply chain and ensure continuity for its identified strategic industries, such as electric vehicles, battery production, and renewable energy. It also hopes to gain immediate benefit from exporting more cars, machinery, and chemicals from day one, as their price is expected to fall for Australians down under.

In a strengthening of the relationship beyond just trade, both sides this week also agreed to increase military cooperation, including deepening cooperation across joint maritime exercises, space, the defence industry, and countering hybrid threats. These underscore growing Europe-Indo-Pacific security linkages and should also complement Australia’s AUKUS collaboration without overlap.

Moreover, formal negotiations have also been announced for the association of Australia with Horizon Europe, the world’s largest funding programme for research and innovation, which could lead to even closer tie-ups between the two economies.

Here is some of what leaders from both sides said in Canberra, Australia, this week:

“This deal creates major new opportunities for Australian exporters in the European Union’s massive $30 trillion economy, and will reduce costs for Australian consumers.”

– Australian Prime Minister Anthony Albanese

“The EU and Australia may be geographically far apart but we couldn’t be closer in terms of how we see the world. With these dynamic new partnerships on security and defence, as well as trade, we are moving even closer together. These agreements put in place lasting, trust-based structures to support peace and security through strength…”

- European Commission President Ursula von der Leyen

The negotiated draft texts are expected to be published soon, before then going through the necessary internal procedures on both sides, ahead of the eventual signing and conclusion of the agreement if all goes to plan. EU Commission, EU Commission+1, Prime Minister of Australia, Australian Dept. Foreign Affairs & Trade, UVL on X, ABC News, National Farmers Federation, The Guardian, Trade Agreement Factsheet (EU)

Google’s “TurboQuant” Signals an Evolution in the Efficiency War

This week, Google Research unveiled TurboQuant, a breakthrough AI memory compression technology that is being hailed by some as the industry’s “Pied Piper” moment (after the fictional algorithm from HBO’s Silicon Valley TV series).

The company says that this technology reduces the working memory that is required for Large Language Models (LLMs) by at least 6x without sacrificing performance. This is a massive tech signal as it challenges the contemporary narrative that AI growth is strictly bound by the supply of high-end chips.

By making AI significantly cheaper to run on existing hardware, Google is shifting the competitive advantage from “who has the most silicon” to “who has the most efficient architecture.”

The AI race has been a key feature of the international political economy in recent years, particularly the rivalry between the US and China. While Google’s innovation here is yet to be deployed in the real world, it does resemble a new “Deepseek” moment in the evolution of AI. It is a signal that the rules of the AI‑driven economy are also being rewritten by the hidden architecture of memory and inference. In that context, efficiency itself is emerging as a new axis of competitive and geopolitical power.

While this innovation could mean less need for advanced chips, it is a rapidly evolving sector, so there is also the possibility that it leads to stronger demand for hardware as AI possibilities then increase further, with the potential to open up new workloads and longer‑context deployments. Google Research, CNBC, CXO Digital Pulse

Strategic and Systemic Insight

This week’s signals are transmitted from an international system that is being rewritten in real time.