Nanoscience & Nanotechnology: Overview

When the ideas and concepts that are discussed as part of the nanotechnology revolution are fully implemented, what is possible? At this point many of the possible advancements that are discussed seem like science fiction.
We can only imagine what is possible… Imagine

1. All of recorded history will fit in a package that will fit in our pockets. This includes all written documents, all music and all movies.
2. Our world will be safer because the computers and sensing systems that fit in a package the size of a pill will be able to warn us of dangers.
3. Life will be extended because we can create systems and modules that replicate the functions and systems in our bodies.
4. New types of "quantum computers" will make calculations billions of times faster than today's digital computers.
5. We can create new types of molecules with the mechanical assembly of chemical systems instead of today's assembly by thermodynamic chemical reactions.