# Streamcast with Ryan: Qwik + Progressive Hydration ## Proposed Outline - What is Progressive Hydration - Why can't you just add Progressive Hydration to existing app/framework - Let's go over each issue PH presents. (We can zoom in how Qwik solves the problem) - Breaking up code into multiple chunks - No centralized bootstrap - Serializing event handlers into HTML - Event handlers have amnesia => Restoring app state - Invalidating components on state change - Out of order rendering - Getting `props` from parent - Getting `props.chlidren` from parent (Child projection) - Child component references bring in too much code - Deciding if we should descend into children - Projecting children - Observing state change and running side-effects - Transient state - Producing ideal bundles => preventing waterfalls - Prefetching through web-workers - Good DX