I don't see a direct causal link here - architecture choices are still mostly about suitability and the specific needs of your app. That said, if you do opt for microservices, modern Edge runtimes like Cloudflare Workers and lightweight frameworks like Hono have changed the game. They’ve made deploying and maintaining microservices significantly easier and more cost-effective, while providing incredible performance.
Masterpieces like these are a perfect demonstration that performance relies not only on fast processors, but on understanding how your data and code compete for resources. Truly admirable. Thanks for the trip down memory lane.