Some things to ponder.

1. Herd immunity isn't an option
2. The only way to go back to normalcy is an effective vaccine or medication
3. Vaccine is probably a year away
4. When the vaccine is available, we still need to produce enough of it for 7 billion people, and vaccinate 7 billion people

There is likely no "normalcy" for 18-24 months.

Now imagine the possibility that there's never an effective vaccine.