The standard measure for good eyesight is 20/20. In 2020, several issues on the regional and global agendas that have been foggy for the last five years or so should become clearer. Two of the longest-standing regional concerns are Iran and North Korea. In the last five years they have influenced each other and this is likely to continue in 2020.
Negotiations on Iran's nuclear program were successfully concluded in 2015 and the United Nations Security Council endorsed the Joint Comprehensive Plan of Action unanimously, enthusiastically and with considerable relief.
The JCPOA was a good deal in that it satisfied all sides' minimum demands without ceding maximum demands of any side. Iran's suspected pursuit of a nuclear weapon option was effectively checked by dismantling its infrastructure, eliminating almost all of its accumulated enriched uranium and subjecting Iran to a tough inspections regime in return for phased sanctions relief.