light beams can create a vortex that force the past, present and future to circle one another until the future precedes the past. Tiny bits of matter can be moved from the present to the past. And if it works for matter, in theory, it can transport us.

Researchers are on the verge of experiments that will finally hold retrocausality's feet to the fire by attempting to send a signal to the past.

!960 Time Machine

1960's time machine model