Can I use Archy instead of reading the book?
Archy is designed to extend the book, not replace it.
The book gives you the full story, the context, the foundation. Archy helps you explore and apply those ideas in real time. One without the other works, but not as well.
If you want the full depth, start with the book. If you want to apply what you're reading, keep Archy close while you go through it.