Great write up on the consensus challenges for POS. POW has proven to work at scale on various cryptocurrencies. POS still seems in it's academic infancy as far as moving forward into the Proof of Stake less energy utilization world of cryptocurrency and blockchain.
The “Token Taxonomy Act” was introduced Thursday by Reps. Warren Davidson and Darren Soto, a move that comes months after a roundtable in Washington, D.C. that sought input about regulatory measures for the industry. According to the text, the bill – among other items – seeks to exclude “digital tokens” from being defined as securities, amending both the Securities Act of 1933 and the Securities Exchange Act of 1934."