That last part is spot on....
...as i told the guy scientists have proven multi-universes, different rates of universal acceleration and multiple dimensions... just to name a few. What prevents Beings from living in these places?
And what prevents there being fractures or ripples in the barriers of time and space that allows beings to pass through them?
One of the most thought provoking concepts I have ever seen in a movie was in the movie "Final Countdown":
In 1981 Mr. Tideman, military supplier who designed the Carrier Nimitz, within a darkened limo so that he can't be seen, sees his employee, Warren Lasky, a civilian efficiency expert, off to visit the carrier for the purpose of analyzing systems and suggesting improvement. Lasky has never met Mr. Tideman in person. On the carrier, he meets a Commander Owen, strike leader for the aircraft.
Within a day or two, the ship passes through some kind of wierd storm and winds up in WWII in 1941 just before the attack on Pearl Harbor. As they decide whether to alter history, as a side plot they rescue a Senator Chapman and his secretary, Laurel from a yacht the Japanese destroyed. Chapman isn't buying any of the vague explanations given to him on how a modern aircraft carrier, not to mention the jet aircraft and sophisticated helicopters came to exist in 1941. He demands to be taken to Honolulu, so Commander Owen excorts the senator and his secretary to a small deserted beach instead of Honolulu. The Senator catches on to the deceit and inadvertently blows up the helicopter after Cmdr Owen and Laurel are on the ground and observe the Japanese Zeros flying over them on their way to Pearl Harbor.
The storm returns and transports the Nimitz back to 1981 exactly where they were before minus a couple of days. No damage. None of the crew and their passenger are any worse for wear.
When Lasky, the efficiency expert, is leaving the carrier, the limo is there, and he is invited on board where he meets Mr. and Mrs. Tideman who are in fact Cmdr Owen and Laurel but 40 years older while Lasky is the same age.
Now what is mind boggling is that Einstein proved, in theory, that such time travel was possible and what effect that could have on the aging process. But what is so mind boggling, that if this was a real scenario, Mr. and Mrs. Tideman were living at the same time that Cmdr Owen and Laurel, their previous personas, were living. Possible? You tell me.
I recall one line from "Close Encounters of the Third Kind" when WWII pilots disembarking the alien spacecraft and, though they had been gone for more than 40 years, were the same age they were in 1945 when they mysteriously vanished. One scientists remarked that this suggests that Einstein was right. The second scientists remarked that Einstein was probably one of them (the aliens.)
Things like that fascinate me. I hope when we enter the next dimension beyond this one that we will be able to see how such things work out for real.