Thanks to his super-genius level intellect, Superman can recreate with absolute certainty an army of beings like himself. Here he offers his powers to his wife. The original formula killed an entire town and he was it's only survivor.
Here a powerful threat called the Ultra Humanite blacks out the entire world. Dent isn't concerned in the least bit and simply wills his power to come back on...just so he can have a convo with his wife.
He even knows it's location just by "feeling" it.
Apparently..It's not easy to hide from the Man of Tomorrow. Here he finds the orchestrator's of a major event.... even through their holograms...not only disrupting the hologram on their end(and they were in a different part of the country)...but reading their minds and knowing their plans in detail.