When they explained why the MU was classified, it reminded me of the themes in the movie Another Earth.
There, another Earth appears, visible to the naked eye to people on Earth. The planets are identical, and have identical histories. The divergent point happens when the two Earths notice each other. For example, the main character is distracted by the sight of the other Earth and crashes her car into another, killing the other driver's pregnant wife and son. Years later, she gets released from prison and once contact is established with the other Earth, she enters a contest to visit the other planet. Presumably, her other self didn't kill anyone. Just as in our universe, there's a desire among some to see if there's a living version of people who died on our Earth in the four years since the divergence.
That drive is why Starfleet classified the MU, even if there isn't nearly the same level of guarantee that there is an MU counterpart to their lost loved ones.
There, another Earth appears, visible to the naked eye to people on Earth. The planets are identical, and have identical histories. The divergent point happens when the two Earths notice each other. For example, the main character is distracted by the sight of the other Earth and crashes her car into another, killing the other driver's pregnant wife and son. Years later, she gets released from prison and once contact is established with the other Earth, she enters a contest to visit the other planet. Presumably, her other self didn't kill anyone. Just as in our universe, there's a desire among some to see if there's a living version of people who died on our Earth in the four years since the divergence.
That drive is why Starfleet classified the MU, even if there isn't nearly the same level of guarantee that there is an MU counterpart to their lost loved ones.