Time does not exist. It is an abstract concept invented by humans as part of our effort to rationalise the extraordinary fact of our existence. The past no longer exists, and the future has never existed. You can’t physically travel around time any more than you can physically travel around mathematics or ethics. All that exists is the fleeting instant.
I would not have thought that needed saying. But there you are. I am not however questioning the value of what sounds like a tremendous piece of research – only the BBC’s populist presentation of it.