Have we reached the end of physics?

In 19th century, two new theories were found: the general relativity and quantum mechanics.
After a hundred years, physicists proved existence of the higgs boson which was suspected this particle is.
The higgs boson has energy field and gives particles mass.
It is also suspect that dark matter is.
Physicists don't know about dark matter in detail, but the best hypothesis is that it is energy which empty space has.
There is another elegant theory; the strings theory.
Physicist who insist on the strings theory consider that everything was made by common and very tiny strings that have particular vibration.
In sum, its vibration characterizes the matter.
This theory has a bog problem that the theory can't be valid with only universe.
On the contrary, if the multiverse is, the problem will be solve.

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