I agree that time travel does not necessarily involve transporting your physical body from "here" to "there". Merely focusing your consciousness there (whether intentionally or not) accomplishes the same thing.
Most people are time travellers as they spend most of their day either thinking about the past (usually negatively as in regretting bad decisions) or worrying about the future (again usually negatively as in "I hope nothing bad happens to me or my family tomorrow") rather than learning from their past and actively creating their positive future in the present.
..or from a purely scientific viewpoint...We are all time travellers living in the past as the time it takes an image imprinted on our retina to reach our brains means that we are viewing a "delayed broadcast" of the present.
