Answer:
Without this, H2O would just be 2O
Before Google, we actually had to physically look things up in this building full of knowledge.
Longer than a decade and shorter than a milennium
Its days are numbered.
When a doctor hits you with a hammer he is testing this
I am the fountain from which no one can drink. For many I am considered a necessary link. Like gold to all I am sought for, but my continued death brings wealth for all to want more.