Loneliness is a gift you gave me back. What song is it? Is the social security expenditure time unified nationwide?

First of all, your first question: loneliness is a gift you gave me back, and it is the lyrics of the song "You don't care in my eyes".

You don't care about my tears. Lyrics, composition and singing are all Wei Jiayi. It tells the story that his girlfriend has an uneasy guess and doubt about the hero's love view, so she chooses to escape. The protagonist originally wanted to give up this feeling smartly. Looking back, I find that love in real life can't be as perfect as the lyrics in love songs. In the face of fragmented feelings, his girlfriend ended their love by leaving, and he had to give up. The second question: There is no unification at present. It will take time for social security to be unified nationwide, but I believe it will eventually be possible. After the national reunification, the social security purchased now can also be merged in the future. At present, social security also supports national transfer, but only a part is paid to the transferred individuals, and the company does not pay a part. Therefore, it is cost-effective to transfer to social security after national reunification.