It's worked in many parts of Canada.These half-baked ideas make zero sense to me. If other provinces aren't doing the same, then in 28 days you'll see an expected drop in Ontario but then open the flood gates for everyone to come back and start it all over again? (and I understand hospital capacity issues, but I just don't think any plan is a good one unless the entire country is locked down equally)
And Ontario has done so much to try and avoid doing this.
But they have to do something.
The health care system there is close to collapse.
Their neighbor (Quebec) also has strict restrictions now as does most of Canada.
Atlantic Canada is doing the best now with almost everything open but it is because we had a hard 16 week lockdown in Spring and re-opened things slowly, with some extra restrictions over the Holidays to keep numbers from spiralling.