I understand and agree with many of these points, but I don't think the timeline of 3-5 months is realistic.
With a green zone strategy, many places don't have to do much at all before opening up and living like normal. That is, for them, the duration of lockdown is ~0.
Isaac lean towards getting cases low and keeping R~1.
1) If you can get cases low, you can get them to zero 2) If you can keep R~1, a bit more work gets you to containment 3) This state is highly unstable, as we've seen from dozens of countries.
I don't know if Canadian's will accept what is necessary for zero covid.
1) What makes us think they will accept what is needed to get cases low and then maintain R~1? 2) The probability of Canadians accepting zero covid is dynamic. People are tired of yo-yo lockdowns.