If there is no proof of string theory how can we know it's not just a complete fabrication?

Answer 1

String is not a physical theory, really, since it has not made any predictions that can be tested experimentally that would distinguish it from prevailing theory. Technically, that makes it a physical hypothesis. However, it is a mathematically theory (like number theory or group theory). In math, the word had a different connotation. Any mathematical theory is, by definition, "a complete fabrication". Even the integers, for example, are a symbolic contrivance - a purely human invention. Incidentally, physics doesn't do "proof"; that's for lawyers, philosophers, and mathematicians.

Answer 2

All theories are fabrications, in that they are constructed by men and women.

In science, we never prove anything. We disprove wrong theories. Only those theories which survive many, many multiple attempts to disprove them become "accepted." But there is no such thing as unequivocal experimental proof. Only experimental support.

There is currently no way to test the predictions of String Theory. It is therefore only a theory in the mathematical sense and is not accepted as a scientific theory. That doesn't mean it's right or wrong, only untested and unaccepted. All theories, right or wrong, go through that stage.

Answer 3

Technically, String Theory is not yet a theory. It's predictions have yet to be verified by experiment but it just makes so much sense mathematically. But, until some kind of experimental evidence arises supporting string theory, it will remain unverified and thus not really a theory.

Answer 4

You can't.

It is a fabrication. It's a theory. It's an idea that someone dreamed up to explain an event or events.

It's neither provable nor refutable with today's technology.

Answer 5

That's why it's called "theory" and not fact.