- Explicit startup vs async main
- tokio context concept
- block_on
- runtime as reflected in the code (Runtime, Handle)
- runtime shutdown
- default work stealing, multi-threaded
- revisit Send + 'static bounds
- yield
- spawn-local
- spawn-blocking (recap), block-in-place
- tokio-specific stuff on yielding to other threads, local vs global queues, etc
- thread pool size
- single threaded, thread per core etc.
- Why you'd want to use a different runtime or implement your own
- What kind of variations exist in the high-level design
- Forward ref to adv chapters