[Analemma_]

> Were lockdowns constitutional?

Yes. Courts have historically granted a lot of deference to the government in crisis situations. Also, "the Constitution is not a suicide pact" [0]

> Were lockdowns effective?

Yes. In pretty much every region, the flattening of new cases lined up exactly with the beginning of lockdown measures + incubation time, and this was also captured by unofficial measurements like smart thermometer data: [1]

> Could other measured responses have achieved similar outcomes?

Probably not. The aforementioned thermometer data showed no drop in fevers from the early half-measures like banning large gatherings, effectiveness was only from the lockdowns.

[0]: https://en.wikipedia.org/wiki/The_Constitution_is_not_a_suic...

[1]: https://www.nytimes.com/2020/03/18/health/coronavirus-fever-...