Avoid Getting Stuck in a Parallel Universe
If you are familiar with John Titor’s posts, you are probably aware that when he was done posting on the internet, he planned to return to his 2036… or as close as he could get to it. John explained that he couldn’t just go forward with his time machine from 2001. He had to go backward first; otherwise, he would end up in our future instead of his.
Source: blog.usejournal.com
He had to travel from 2001 to 1998. When he stops in 1998, before he arrived or did anything, he traveled back to 1975. When he traveled to 1975 from his timeline, it was technically his past. So once he got to 1975, he was able to make the trip to his 2036.