With respect to the blockchain, almost all of the technology is available before bitcoin, but no one thinks it works until bitcoin, so bitcoin is the first successful application of blockchain technology. To the extent that bitcoin is the first blockchain there's nothing wrong with it. If you want to understand the blockchain technology, Bitcoin is indeed a thing that can't go around.
Bitcoin uses blockchain technology, but the blockchain is not the same as bitcoin. First, we have to figure out one problem is that bitcoin is a blockchain, but the blockchain is not bitcoin. Therefore, in the blockchain's answer to this question, it is inaccurate to mention the words "miner", "mining", "longest chain", "bifurcation" and so on.