On the Success of Scientific Theories

[robvalue]

I'm not sure if this is relevant to what you're looking for but I would say the reasons science is successful are:

1) Everyone is working within the same well-defined framework of repeated, observable, testable predictions about reality
2) The best scientific minds in the world will be looking for ways any hypothesis breaks down, both before and after it is accepted as a theory, meaning only the very best survive
3) The system is self correcting so that theories are abandoned or improved on when they are shown to break down
4) No one has the final say, anyone in the world could prove any scientific theory wrong at any time

Basically, science is the best we have because it works, it provides the best models of reality given the available knowledge, technology and expertise. Any part of it that doesn't work gets improved upon.