Trying To Wrap Up The Physics

The Corridors Of Time.

Throughout history, there are time corridors, each invisible from the outside apart from its portal which is concealed underground. At each portal, many people at different times enter or exit the corridor. Therefore, the corridor should be full of people moving in both directions. Instead, Storm merely tells Lockridge that there might be enemies on the other side of a portal. In fact, they enter an apparently empty corridor and travel along it for a while before being pursued by two Rangers whom they kill. Thereafter, Lockridge and others travel along only empty corridors. So where are all the other travellers, including their older and younger selves?

That clarifies this issue about as far as I can do it for the time being.