This is a conceptual question. One popular criticism against String Theory is [its high number of solutions][1], around $ 10^{500} $.

- Is it true that each solution is corresponding to a specific possible universe?  

- If yes, can we identify and pick a single solution that is corresponding to our universe?  

- If yes, can we use this solution to make testable/falsifiable prediction in our universe?

Please also point out what is possibly wrong in my fact and thinking process.  

  [1]: https://en.wikipedia.org/wiki/String_theory#Number_of_solutions