Keynote · October 2026
The AI Efficiency Fallacy
Keynote on why AI's promised efficiency is a fallacy: the technology is brute-forced and expensive, and the human oversight that makes it safe is what automation erodes.
Technology leadership · Architecture · Sustainability
Innovative Tech
That's Sustainable & Responsible
Visionary strategy and architecture that balances performance, people, planet and profit pragmatically.
Founded by
Oliver Cronk
Fractional CTO and Chief Architect
- 25+ years as a practitioner and tech leader
- Energy, environment, telco, finance, government, professional services, cybersecurity
- Buy-side and sell-side experience
- Founder, Architect Tomorrow community
- Experienced speaker and facilitator
Core Services
What we do.
Chief and Enterprise Architecture
Part-time CTO or Chief Architect-level engagement, shaped around what you actually need, and independent architecture reviews before major decisions.
Pragmatic AI
Using AI where it genuinely helps: testing the business case, governing agents at the speed they are built, and keeping people accountable where the consequences are real.
Sustainable and Responsible Technology
Technology has an environmental and social footprint that most organisations have not fully mapped. We help organisations understand that footprint and act on it.
Speaking, Chairing and Facilitation
Keynotes, talks, panels and facilitated sessions on architecture, AI, sustainable technology, cybersecurity and risk, for conferences, communities and leadership teams.
Selected experience
Recent work.
Keynote · October 2026
Fractional CTO services for a climate and nature risk initiative
Service: Fractional CTO services
Fractional CTO services, including the architecture, design and deployment of the initiative's domain, email and website.
Product-market fit and architecture roadmap
Service: Fractional CTO services
Refining product-market fit, setting out an architecture and AI roadmap and advising on the technology stack for a sustainability SaaS platform.
Enterprise architecture and architecture governance
Service: Chief Architect-level advisory
Latest
New thinking.
AI Sleepwalking
Artificial intelligence is not artificial wisdom
Revisiting the Data, Information, Knowledge and Wisdom flow in light of AI transformation
November 2026 AI SleepwalkingThe AI Efficiency Fallacy
AI is sold as an efficiency play. But the tech is brute-forced and expensive, the language we use about it is misleading, and the human oversight we rely on to make it safe is the thing automation erodes
October 2026 Ecosystem Architecture 2.0Designing Freedom in the Age of Autonomy
Why Stafford Beer's 1973 cybernetics lectures hold some of the keys to governing AI, architecting ecosystems and building systems that serve human flourishing.
October 2026Want to Discuss Further?
Let's Talk!
If you are figuring out whether fractional CTO support, an architecture review, or a sustainability assessment makes sense for your organisation, let's chat!
[email protected]
Based in Newbury, Berkshire · Working across the UK and internationally