it's about the time machines stupid...

"A time machine is a device which brings about closed timelike curves—and thus enables time travel—where none would have existed otherwise. The physics literature contains various no-go theorems for time machines, i.e., theorems which purport to establish that, under physically plausible assumptions, the operation of a time machine is impossible. We conclude that for the time being there exists no conclusive no-go theorem against time machines...There are at least two distinct general notions of time machines, which we will call Wellsian and Thornian for short..."

More than just a ghost of a machine, this time machine eats CTC's.