The rule is to comply with the strongest chain, i.e., the chain that incorporates essentially the most work is taken into account the one the whole community ought to comply with (the chain of reality). If a brand new chain seems that differs in a number of of blocks (even as much as 20/30; perhaps 100), it isn’t that important drawback; the community will swap to that new, stronger chain. Nonetheless, what would occur if a wholly new chain ranging from the genesis block appeared with extra computational energy than the present one? In line with the principles, we should always comply with the strongest (the brand new) chain, and all nodes that do not accomplish that can be thought-about invalid. However would the community actually swap to this new chain? It’s proper to make the transition, but when it was executed utterly, everybody would lose their cash in Bitcoin, folks would lose confidence within the community, and it will utterly collapse.
Due to this fact, in idea, and what’s right is to transition to the stronger chain, however wouldn’t it actually be executed?
I am not asking for predictions in regards to the future or somebody telling me what would occur in hypothetical situations, however I assume that individuals who have been concerned in Bitcoin for over 5/10 years have thought of this, and discussions on this matter may need taken place within the Bitcoin group (conferences, boards, casual conversations, and so on.). I count on there have been conclusions drawn from these discussions.
