1. Ответ:

1.    Time travel might become possible

2.    Borders will probably disappear between all countries

3.    @oogle and facebook could join together

4.    The euro won't probably disappear

5.    A hotel definitely won't open on the Moon

6.    Solar energy will become certainly of the future energy

7.     People might speak one universal language

8.     Scientists won't probably discover medicine of all diseases