This post is for thread harmony control. The master of posting would want me to do this. Since our topic here is time travel and you, the possible, time traveler, alien, time criminal on the run and so on, would want to know how you can travel both in time and differing places within the universe, then it's probably accomplished this way.
If you look at a probable black hole, like a big beach ball and you can also do this with a brown dwarf, or any planet for that matter, as a construction made out of layers, put together in similar fashion to a thick, "let's say big city phone book", you can start to get the idea that the area surrounding the super density of a black hole is multi-layered.
The deeper you go, say in your space ship to enter into any layer of pages, is affected by the angle that your spaceship skims those layers and to what depth. The singularity, which is told by Astrophysicist Stephen Hawking, via Marcia Bartsuiack's book, is what you don't desire,.. to fly a perpendicular angle to, or straight into the black hole.This is where the atomic density is predicted to be the thickest.
If your spacecraft is magnetically compensated, it more than likely will be able to enter what the refer to as the gravity veneer layers surrounding that black hole.If you also have a map, at what entry point you must enter, to go to what place in the universe, then you can pretty much go to any place and time that you wish.
There are two other methods of time travel and this one is a ventured guess, to where a flying saucer starts to fly towards a smaller moon, then projects a gravity wave, which interacts with the existing gravity of that moon, then this vehicle can also dial the time that it wants to go into.
The last method and I thought that I would mention this, is via established photonic controlled pressure.This method is in its infancy on this world, by may have been expressed as !, An accident by some kids who built a badly executed version of a Steven Gibbs (time window portal), this was supposedly in Los Angles California, to where the machine had malfunction and or hurt or killed the kids trying to use it.
2.The second method has been mentioned by Attorney Andrew Basaggio, in his tellings of a time matter transfer machine, that he had seen via connected work association with his then father.This machine is like an expansion of the Gibbs machine, but was built under (ESTIMATED) secret contract, so I will just mention the method, but not divulge what I think is the gravy sauce.
All of these methods are now in current use, by my telling here, is for you the guest and entertaining you with theory provoking thought is what we're after here.
*This may be off topic, but I am not socially rude to partners here at Curious Cosmos.I said thank you to a member here, as it was the right thing to do. One issue that I've got to instruct you the visitor here to, is that time travel dealing posting boards, by their sometimes natures, can be very bizarre places to be.
This is mainly because one does not know, due to the subject matter, who or what is on the other end of one's PC connection, or whether the person you're talking to, is a time traveler that may be stuck in this time. Maybe all the want, is to get home?
For me, here, I watch those manners and am anymore, nice to the people that I communicate with. You may personally feel with your ego, that you don't have to be nice. But as fate sometimes dictates, the shoe ends up on the other foot and the situation seems to be, that you're the one who is in trouble. So for me, I try to be curt in the conversation and flavor to reign on the pleasant side and from time to time, show a little gratitude.
This is up to you how you may act and conduct yourself here.But for me just getting an teensy weensy bit of just how vast and lonely this universe can be, I try to keep it within the good Jill or Good Joe range of how I conduct myself. Like I said, your own rudeness can come back to haunt you. Thanks