ETH2.0 is indeed an opportunity for wealth. However, if you participate in mining, the threshold for participation is high, requiring 32 ETH. The lock-up period is long and the liquidity is uncertain. The technical cost needs to be borne by the node itself, and the annual cost is about US$120. Staking nodes need to be stable and active 24 hours a day, 7 days a week, otherwise there will be penalties and the income will be difficult to guarantee. Now ZB.com QETH can just fill this gap.