In this thread I discuss the last candidate design for Polkadot Relay Chain. The JAM chain. Starting with a quick overview of Polkadot 1.0 and what can be improved, incoming 2.0 and Agile Coretime. How the Join Accumulate Machine works in terms of architecture and service model, which enhancements these will bring. Quick catch up on PVM and JAM Toaster. https://vxtwitter.com/Tur1ngM4ch1n3/status/1770872559837286401