The energy required to activate "Spacetime Fixed Point Insertion" was not much, consuming only 200 points for one activation, though if one wished to return to a specific moment in the past, the energy cost would be calculated based on the length of time.
Besides, the energy needed to initiate "Butterfly Effect Stabilization" was also not much, requiring just 500 points.
The combined energy consumption for both was 700 points, which was negligible for Yan Junze who now had a full capacity of 8600 points.
Having spent 1000 points to detect the space-time rift earlier, he was left with 7600 points. After starting the Great Rewind and Butterfly Effect Stabilization, he would still have 6900 points.
This meant that after the ability to perform the Great Rewind was available, these 6900 points of Different Dimension Energy were the capital Yan Junze could use to choose a time and space in the past to travel back to.