>>12869233Lmao no.
An accelerator powerful enough to generate a black hole is more than the entire energy consumption of the planet. You would also need more matter flowing in than the Hawking radiation to keep it stable which for a micro black hole is literally E=MC^2 with a single gram of hole being like a thermonuclear bomb. You'd also be pushing against said radiation pressure. Forget shoving a golf ball down a firehose, it's like cramming a lid on a large nuke.
It also wouldn't be magnetically held unless it was spinning, which only happens in collapsing stars and would be well beyond the capability of human understanding to produce let alone trap.
Lastly it likely won't help you travel through time and if it did tidal forces and radiation would wreck you.
You're far better off just finding two closely orbiting black holes and going through the nonstandard spacetime there. Plus you can't go back prior to the creation of the wormhole, which means an ancient naturally occurring one is your only option.
Ok I know building a warp drive to get to a distant black hole sounds impossible, but building an accelerator billions of times more powerful than the large hadron collider in your basement is even less possible.
Sorry, no time travel for you, but just wait until you humans find out about meta and you'll at least get off earth easily to explore your local solar system.
You can't go back. But you can go forward. Jupiter is very nice.