why unification of forces so difficult,having such an advanced science & scientists?

Question

unification of fundamental forces

Answer 1

Mission Impossible is just a movie.

Answer 2

If the forces are not actually unified, then unification of them is impossible. That would make it difficult.

If we ever succeed in unifying them, then and only then will we know why it was so difficult.

The major difficulties are on the quantum scale. It's extremely difficult to make measurements or do experiments at this scale. With time and money, technology could help this.

We know so little about gravity that we can scarcely conceive of how it could be related to electromagnetism / electroweak forces.

Answer 3

Out of four known fundamental forces ie, strong, electromagnetic, weak and gravitational, the first three are theoretically unified but the last one is terribly difficult to tame. The reason lies in the properties of the gravitational interactions. The problem we face is that when we write down a quantum field theoretic version of it, the results are not very encouraging. No one knows exactly how to get the correct quantum theory of gravity theory. Yes, lots of smart scientists are working on it but nature is surely a lot smarter than all of them taken together--as it appears.

Answer 4

Don't want to say the obvious, but YOU unify the fundamental forces, not that easy is it. Yes Gravity is a *****.

Answer 5

oh, ok