Ethereum move to Proof-of-Stake again delayed by 18 months
tokenist.com
tokenist.com
"PoW to PoS is expected to take place sometime in 2021/2022"
It's the "the shipping of shard chains is not expected until sometime in late 2022" that is further delayed.
Buterin complains about "people problems" in the article, I assume it basically boils down to that.
Basically, what the difficulty bomb does is it forces the network to hard fork every year or so to postpone the bomb, otherwise the math will cause the network to start getting exponentially harder very quickly until the point that the network can't move, the so-called "Ethereum Ice Age." It doesn't lock up the network immediately, but is a few month process, just in case a fork is late for some reason.
If miners wanted to buck Ethereum 2, they have the difficulty bomb ready to go off, and need to have 51%+ of them agree on a new leader, and fast, and then deploy this new leader's code on their machines with the difficulty bomb postponement and rule change. That's what the Ethereum devs are betting they will fail at. Of course, the miners who are in the know are quite aware of the bomb and don't like the fact that if they refuse the death of mining Ethereum, the thing will self-destruct or that the devs would "hold them hostage" this way.
For the dev's perspective though, I get it. How else would you get miners to accept Proof of Stake? There's no way they'd approve if they could help it.
Until then, when the price falls its time to buy!