This matters for us here in Australia, because there are many similarities between our two countries in terms of their relatively effective management of the COVID-19 pandemic. Both have made use of advantages they enjoy -- geographic isolation (South Korea's only land border is with North Korea, though they still accept some international arrivals), first world medicine and technology, and a relatively compliant population.
I have little doubt that South Korea will manage this latest uptick in cases, but the fact that it has happened just reinforces the advice that we are unlikely to eliminate the virus completely. Too many people can be asymptomatic while infectious and many of those will never show symptoms. Therefore, it's quite feasible that the virus can fly under the radar for weeks, and even months, before surfacing as an identified case.
It seems very likely that the South Korean experience will be repeated in Australia and we need to be prepared for the re-imposition of restrictions, though maybe only on a regional basis. It will be troublesome, but manageable, and we will get used to it. Under this scenario, it makes sense that borders between countries (and states) with similar infection levels and testing, tracing and isolation capabilities should be opened.
My exercise for today was a game of golf with mate, Dave, on a beautiful morning. It was my first game for more than three weeks, so I was a bit anxious, though not about my form which was rubbish as usual. My golf swing imposes stresses on my troublesome hip that are different to running and walking, so I was worried about incurring damage, but I can't wrap myself in cotton wool for ever. As it happened, I was conscious of some hip discomfort but won't know until tomorrow whether that was just lack of use, or a setback. I'm hoping the former.