The text discusses the differences between REST APIs and webhooks, highlighting their communication models—APIs are synchronous and client-initiated, while webhooks are asynchronous and server-initiated. It explains how OpenAPI 3.1 has improved support for documenting webhooks, treating them as first-class elements alongside paths and components. Previously, in OpenAPI 3.0.3, webhooks were handled through callbacks, which were less effective for asynchronous events. OpenAPI 3.1 now allows for more straightforward webhook documentation, enabling incoming requests to be described independently of specific API operations. The article uses examples, like a traveler asking "Are we there yet?" to illustrate the efficiency of webhooks over APIs in certain scenarios. It also highlights Bump.sh's platform support for OpenAPI 3.1 webhooks, allowing users to track API changes via customized webhooks, further enhancing documentation and API management.