ETH 2.0 will see the network transition from an energy-draining, expensive proof-of-work (PoW) consensus mechanism to proof-of-stake (PoS). This will effectively make miners obsolete, as blocks will instead be verified by validators who stake 32 ETH in order to run a node.

Bison Trails Co-founder Aaron Henshaw (l.) says with millions of users and tens of thousands of DApps, ETH's upgrade might not be easy (Photo: Bison Trails)