Scientists trying to take advantage of the unusual properties of the quantum realm say they have successfully simulated a method of backward time travel that allowed them to change an event after the fact one out of four times. The Cambridge University team is quick to caution that they have not built a time machine, per se, but also note how their process doesn’t violate physics while changing past events after they have happened.
There was a fascinating simple study done some years ago in regard to altering the past based on future actions. I will try to find it. But if I remember correctly, they had 2 groups of people, the control and experimental. Both groups were given the same list of words to look at briefly. I believe they may have then been distracted by an intervening task. Afterward, the individuals in both groups were asked to recall as many words as possible from that list. These results were collected, but not yet seen/scored by researchers. The experimental group was then given the original list of words, and were told to study them for awhile AFTER the recall test. Control group did not study. The recall test was then scored for both groups after the “study or not study” period. It was found that the participants in the experimental group that had the time to study the word list, (literally after the test was well over), scored significantly higher in those initial recall results! Lending to the idea that maybe we can influence past events in some manner that is measurable, eh?