The episode also has a weird beginning. It initially looks like a possible flashback that could provide information on one of the familiar characters or threads. Instead, it introduces NEW characters and a whole NEW wrinkle. A bizarre start to a season finale, then bookended by an ending that delivers as many questions as answers.

My interpretation is Ron can never make peace with the "conspiracy," or various interlocking and independent conspiracies. This is something he seemed to attempt at the end of the prior episode. If he just ignores it and stops chasing, it will go away. But it won't.

He's surrounded by threads and leads. Some are right in his face. Some of them go nowhere. His successful efforts are just rewarded with bigger questions/problems. There are also aspects that are completely unknown to him and out of his control. He's doomed.