Time traveller from the past?

[Ejie]

So according to the laws of physics, only time travel to the future is possible if you go really fast close to the speed of light. So does that mean a time traveller from the past can show up here in the present moment which is the future?

 

[Einstein]

The Laws of Physics as told to us by the academic community. As time moves on, the credibility of the academic community has become very questionable. They keep using Einstein's theory of general relativity to validate their claims. It just seems kind of odd that no one has ever invented anything using general relativity.