In this episode of Buildings 2.0, Jose Cruz interviews Dimitri Stefanescu, founder and CEO of Speckle Systems. They discuss the challenges of interoperability in the AEC industry, the importance of communication and trust among stakeholders, and the balance between open source and business pressures. Dimitri shares insights on the future of data in construction, unexpected use cases for Speckle, and the evolving role of AI in the industry. The conversation emphasizes the need for a post-file world and the importance of understanding existing spaces to drive digitization. Takeaways   Interoperability is not just a technical issue but a communication problem. Building trust among stakeholders is crucial in AEC. Open source can create positive externalities but also challenges. Data should be accessible and queryable, not locked in files. User personas in AEC are diverse and require tailored solutions. Unexpected use cases for Speckle highlight its versatility. Visualization techniques must cater to both technical and non-technical users. AI can enhance understanding of existing spaces but is not a panacea. Engaging with construction is essential for Speckle's growth. Testing ideas on all fronts is vital for future founders.