A library is a place where past perceived facts and imagination are stored. The reason they are important is because of natural law of cause and effect. Many times the future is based on things that happened in the past plus some probability of randomness. The mind can not be aware of all infinitely causes but can search the past with a focused eye. The new storage of information does not hold the credibility of past people’s reputation for honesty. The internet has much more psychological manipulation than the past library. Electronic systems are much easier to change than an old book. But an old book might not have the evidence of today’s measurements.
All this comes to the point that understanding today is much more difficult than in the past.