In part 2 of this sit down with Carl Dong, Murch and Jonas cover the delicate work of modularizing the Bitcoin consensus engine. In this conversation, we cover:   - Carl's De-globalize ChainstateManager PR (2:25)   - Async Block Processing PR   - Deglobalize class of chainstate manager (g_chainman) (3:40)   - AssumeUTXO   - global variables and main (5:25)   - scripted diff (9:35)   - 0.8 upgrade consensus failure (11:25)   - Jorge Timon's libconsensus project (13:10)   - current libbitcoinconsensus only does script verification (13:25)   - the case for multiple implementations (14:40)   - ABI (15:10) Thanks as always to Matthew Zipkin for the sound engineering.