Our era is described as the "information age", which means that we can not only obtain a large amount of information quickly, but also a large number of replacements of the information we have obtained. The pasting and updating of network information are typical examples. The "classic" is It is the crystallization of the arduous creation of the genius brain. It is a permanent spiritual existence. The state of the information age is out of step with the thoughtful spirit required by the classics, which is one of the factors that make it difficult for our times to produce classics. What's the central meaning of this passage? ['The era of network information is an era that can be continuously copied.', 'In a sense, the information age is the age of classic crisis.', 'Network culture can also become a classic.', 'There are no classics in our time.']