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**Is It Ever Possible for Two Events in a Person\'s Life to Be Connected by a Line That Deviates More Than 45 Degrees from the Vertical Time Axis?**

Hi:

Sorry if the following questions sort of overlap with some of my older questions, but I figured that if I didn't repost in a new category, I might never get them answered. Anyway...

Assuming NONCURVED spacetime, is it ever possible for two events in a person's life to be connected by a line that tilts more than plus or minus 45 degrees from the vertical t-axis on a 3-D (2-D space, 1-D time) spacetime digram?

Also, would it be possible for another party (even a single particle would suffice) to converge with these two events and have a line that ever tilted more than 45 degrees from the vertical t-axis?

Thanks!