While giving a lecture , he talks about time travel and the possibility of visitors from the future .
At the same time , a theoretical physicist named Dr Arnold Mayer has a professional curiosity about the crash , which borders on science fiction .
While giving a lecture , Arnold Mayer talks about time travel and the possibility of visitors from the future .
At the same time , a theoretical physicist named Dr Arnold Mayer has a professional curiosity about the crash , which borders on science fiction .