Add a subrule to “The Modus Ponens” called “Displacement” with text:

*’‘'Requirements’‘’:  Target Traveller (other than this Traveller) is within this Traveller’s Range.  Target Date is within this Traveller’s Range OR Target Traveller has at least one Hiesenberg Loop.
*’‘'Action’‘’:  This Traveller may set Target Traveller’s TL to Target Date.

Add a paragraph to the Law of Time “Thou Shalt Not Kill” reading:

A Traveller using the “Displacement” action may not choose a “Target Date” on which there exists a Death Event for “Target Traveller”