The talks between South and North Korea are not at all what they are cracked up to be. While the world would love to believe that this is some grand exercise in "can't we all just get along" diplomacy that always-only ever failed under Obama in any and every hemisphere, North-South talks are not what they seem. They are a distraction, a false pretense, an ostensible cover story, a smoke screen for something much, much deeper.
In all likelihood, the talks will include a very subtle Asian-style, excessively subtle (since it's among Koreans) offer. Even bachelor's degree students of business management study the science of talking to an employee in such a way that he doesn't figure out he's being fired until he gets home and takes his first bide of dinner. Leonardo explained the idea well in his movie Inception.
The meeting, capitalizing on participation in the Olympic games so strategically timed and placed, is more akin to the close of the series The Sopranos. A lieutenant of a rival family meets with the head of another family to plot the "offing" of his own boss in order to stop an ugly war that no one wanted, which started when that new boss came to power. The rival family "does in" their own boss at the gas station, the main character makes his hospitality rounds, and the story ends.
That's what this seems like. The Trump administration is allowing it, taking partial credit in a preemptive expectation of due accolades, also reminding the Asian world that communication is a good thing. Symphony said the same two days before Trump sent his January 4 Tweet to the same effect: without pressure from the US there would be no talks.
If Kim Jong Un eventually disappears in the months ahead, remember that it all came from this meeting, purportedly about the Olympics. There wouldn't be any moves in northern Korea without already having "certain assurances".
But, don't let that distract you. Taiwan is definitely playing its role in provocative and irksome "spitting matches" with China. As with the min-boss in The Godfather Part III, Taiwan wouldn't do that without "backing".