Putting the past year into context. We have a clear 1st wave that took more than 1 year this was followed by shallow wave 2 zigzag that was followed by wave 3 spike at the beginning of the pandemic. We are in wave 4 right now. Wave 4 should be a flat or triangle based on rule of alternation. However wave 4's are notoriously hard to predict and we technically could go all the way down to 4. The example shown is if wave 4 was a flat wave.
