What is Zilliqa?

Amrit Kumar, Jia Yaoqi, Max Kantelia, and Prateek Saxena founded Zilliqa in 2016 as the first-ever high-throughput public blockchain able to process thousands of transactions per second. To implement this feature, Zilliqa leverages the principle of sharding: the more expanced the network is, the larger the transaction rates become. 

How to Become an Eth2.0 Validator Node? | NOWNodes

Ethereum 2.0 is an upgrade on the Ethereum blockchain. This upgrade aims to make the existing Ethereum blockchain more scalable, secure, and sustainable. The entire upgrade is scheduled to happen over two years. It is distributed among three phases. The first phase is the launch of the Beacon chain which has already happened. The second phase is scheduled for 2021 when the shard chains will be introduced. In 2022 the upgrade will reach its completion with the merging of the mainnet with the beacon chain. Once this merging or ‘docking’ is done, the entire Ethereum network will be available for staking.