In this podcast episode, we explore the cutting-edge world of serverless architecture, focusing on Vercel's innovative in-function concurrency feature. This advancement tackles the drawbacks of traditional serverless options like AWS Lambda by enabling a single function instance to manage multiple requests simultaneously. As a result, Vercel reduces idle compute time and costs significantly. The conversation highlights real-world savings, various concurrency models, and their potential impact on the React ecosystem, creating an optimistic outlook for the future of server-side development while also addressing latency concerns in CPU-bound tasks.