Hmmmm it now makes sense how the doctor travels in a box, that way he wont die or cant die and the same goes for everyone else i suppose who travel in time.
I guess for the guys that are not traveling in box they would need to use some type morphagentic shield to enable the transportation of the a reain which they are standing in.
Well enough of the sudo science, if you had a one way tick to travel in time where would u go ?