Chapter 5: SegWit
-At Scaling Bitcoin Hong Kong segregated witness is talked about. SegWit is a way of increasing blocksize without being incompatible (softfork).
-Luke Dashjr figures out hack to make SegWit possible.
-seems like win win but nobody understands it which causes more confusion and division between small and large blockers
-SegWit opens the door for layer-two transaction network, lightning ⚡⚡⚡
-November 2016 SegWit is released in Bitcoin Core
-95% of blocks had to signal support to activate softfork