Mean age on Diamond Princess was 62, and the paper doesn't break lung damage up by subpopulations like "younger people" so it's hard to generalize. But I'm not blase.

Plenty of comments implying that we're "all going to get it", which may be pretty much true in some areas in the US and Europe. I'm still holding out hope that being in Australia we may get a handle on it (although we just saw a huge cluster in a meatpacking plant). It's interesting to think that we might be heading for a world where some countries have had 60% prevalence and others have had 0.6% prevalence - what does that do for travel, trade, migration, tourism - all that stuff?

It's impossible to tell just from imaging a month or two down the road how "permanent" damage is. Yes, it's concerning. But we also don't know that it can't heal in time. Just because it looks like things we "know" on a CT doesn't mean we know how it acts long term.

Before you downvote me, think about all the reports of people with VERY low oxygen saturation that "shouldn't be" alert, talking, and feeling ok. That goes against everything we "know" as well, but it's very real for this disease.

Meh, the lung damage was "mild" in the bulk of the cases.

What does "mild" mean?

Meaning it's not a big deal in any real world way.

Not always. COVID-19 was described as “mild” at the outset. Turns out their operational definition of “mild” was something like “doesn’t require a trip to the ICU even though it may require hospitalization.” Not everything you read will use the word “mild” in its conventional sense.

Everyone is going to catch this. A vaccine will not exist for another year. The world can’t be shut down for another year. When everyone eventually catches this, some will have permanent lung damage. That sucks. Pretending this isn’t going to happen is foolish.

If we get the case count low enough we can open up and do contact tracing until the vaccine arrives or it's eliminated... if we open up before it's that low, everyone gets it.