CHAPTER18

Toward a Theory of Everything

In This Chapter

  • Where the standard model falls short
  • A brief peek at relativity
  • A few possible schemes for quantum gravity
  • The problem of testability

It seems that physicists are never satisfied. Their goal is no less than a complete understanding of the universe—past, present, and future. Quantum physics has produced great progress toward this goal, and the standard model summarizes that progress and our current state of knowledge very well. But it certainly does not give us a complete picture.

We’ll start this chapter by looking more deeply into where the standard model falls short. By examining the ...

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