29 April 2004
Let’s start with an intro quantum gravity, by introducing the things we know (or don’t know, as it were). If there are spelling/factual errors in this post, let me know - I’m posting this without the book in front of me, since I a) can’t figure out where it is right now and b) retelling things without the actual source is the surest way to determine command of a subject. Anyway, so the posts on this topic will be... interesting, to say the least. I will edit and add to them as I know more, or realize my explanations require better... explanations.
Before discussing what the quantum theory of gravity is, let’s deal with the introductory material. The first (as far as I know) major theory which deals with the nature and rules of the universe was by Newton - a theory developed well before the discovery that the physical world could be broken down into smaller and smaller parts (i.e., atoms - and even smaller than this). Newton’s theories worked well - that is, it allowed people to perform calculations in the real world with great accuracy, and provided a framework for understanding the world. That is, the world is structured and ordered, and based on absolute principles. Every reaction requires an equal and opposite reaction, and such.
Read on...
