Instead it gives a framework that will solve fairly arbitrary problems as you work on developing a unified theory. Techniques can be much more broadly useful than theories.

When I was working on my PhD, I probably saved days or weeks of effort by writing a program to brute force an approximate solution to an equation I couldn't work out. After seeing that the solution wasn't what I wanted, I was able to spend the time I would otherwise have spent on figuring out the equation on something more useful.