Also even at the end of the current quarantine period, companies are not going to pop out and be ready to go just as they were before. The economic landscape will look like after a hurricane has hit, companies that have laid off people are not going to be in a hurry to rehire them in my opinion. Companies are in general unlikely to rehire previously reduced folks (and reduced folks are likewise unlikely to want to return to previous employers), and are instead going to look for new candidates. What we typically see after recessions is massive movements of people between the sectors. The recovery will be a long hard slog. I'd love to share your optimism, but I think the hurricane analogy is apt, even after the sun starts to shine we'll be living in the aftermath of unprecedented economic destruction.

Airplanes I'll grant you - I can definitely see a world where flights swing closer to a luxury good like they were decades ago.

Yes, people will want to eat out. But it will be fewer than a few months ago because a) layoffs, b) less disposable income, c) the fear of less/no income soon, d) the fear/risk of getting sick, and other reasons I can't guess.

Whether that is -10%, -50% or -95% has yet to be seen and near impossible to predict usefully right now.

The Spanish flu killed like ?? tens of millions, also in a year or two.

There was a more protracted pandemic that killed a million around 1910-1920, but it wasn't a flu.