Ethereum Merge Brief Background Most people are aware of Proof-of-Work (consensus mechanism to validate blocks on the blockchain - this is done with miners solving math problems (work)). Ethereum, the second largest Crypto Currency is moving from a Proof-of-Work to Proof-of-Stake (consensus mechanism that validates blocks through a validator (like voting) system). The main reason for doing this is to get away from miners wasting electricity solving useless math problems to a system that doesn't waste energy on miners. One argument against moving to Proof-of-Stake, is that it becomes more about controlling a large number of validator nodes (so in a sense, the larger validators have more say, whereas Proof-Of-Work rewards are more 'fair' as it is randomly distributed. Either way you look at it being positive or negative, it is an event that can be traded as the current estimated merge date (the date the blockchain switches from Proof-of-Work to Proof-of-Stake...