What, you've never heard of Project Montauk/the Philadelphia Experiment? In 1947, the US military was using some Tesla coils to try to make a ship invisible to radar. When they turned it on, the ship disappeared, but instead of being there and invisible, it actually went through a vortex and ended up 40 years into the future. When it cme back, the sailors and technicians aboard were messed up, physically and emotionally. (think radiation burns, PTSD, etc.) If you think they haven't been working on this ever since then, and refining/perfecting it, then VC just may pull your "conspriacy theorist" card.
The Mandela effects we experience in ways great and small are clues that "they" have been messing with the timelines.
Funnily enough, I was talking to my kid the other day, about scientific stuff, and mentioned PM/PE. Went to google an article/video to help explain the finer points, and this popped up in my search:
Army scientists have successfully "teleported" a fully equipped squad from a Massachusetts research and development facility to a training area in Germany.
www.army.mil
This is from the legit US Army website. This is them advertising themselves to prospective recruits. It's definitely uncomfortable to think they can straight up teleport fully loaded troops anywhere in the world, but there's no reason to think that this isn't the case, other than one's own refusal to believe. Once you come to terms with that, time travel looks like an obvious adjunct, using the same or similar technology.