Space Flight 704, Chapter 54: Singular Conundrum.
They are one and the same. \
The power of the Torimbalo was used in the device you observe.
The thread Rex had followed hadn’t tapered out, so much as disappeared into itself through the time belt. Squeezing his consciousness through it, like yarn through a needle, he could see the thread emerge from the other end.
He followed it through to another time, pausing to get his bearing while the other slipped through after. As he tried to establish when he was, he noticed the thread looped back on itself and through the time belt again.
“This is going to take a while isn’t it?”