Evan put out a new Year in Ethereum, which is a comprehensive update on how much can get done in this space in just 365 days. Gavin Andresen layout the next logical step for tornado cash, wallet integration. Coffee futures tokenized. Plasma group + VC $$ = Optimism. Starkware provides data showing that cutting gas costs (and increasing block sizes) wouldn't increase uncle rate and proposes a 4x increase. LivePeer introduces Streamflow, with probabilistic micropayments.
https://medium.com/@jjmstark/the-year-in-ethereum-2019-242012e4276d
http://gavinandresen.ninja/a-more-private-eth-wallet
https://affogato.co/
https://medium.com/ethereum-optimism/optimism-cd9bea61a3ee
https://ethereum-magicians.org/t/eip-2028-transaction-data-gas-cost-reduction/3280/35
https://medium.com/livepeer-blog/livepeers-streamflow-protocol-update-is-complete-and-a-new-tokenholder-site-is-launched-163a94ac8ebd