A validator is a virtual entity, operated by a node, that exists in a node server and participates in the PoS
The OP Stack is designed to allow for a much easier way to fork the code than current efforts, as developers can easily abstract away the various components of the blockchain and modify it by inserting different modules.
Schelling point is the tendency of people to choose in the absence of communication, which is the consensus under the premise of mass rationality. I predicted you predicted me. In the secondary market, there are often wealth codes generated by Schelling points.
If you didn’t sell the top, why do you think you can buy the bottom?