[Snorlax94]

I don't know about the legal aspects and maybe it wouldn't be legal under current laws, but the technological aspects are very feasible, though admittedly there would be some complexities to minimize cheating. It wouldn't be foolproof, and it'd be important to make GPS-spoofing the app a crime.

I am pretty sure it is legal under current laws. One state can exclude travel from another state if the is a "legitimate public health reason". I don't agree that it is very feasible however. Not everybody has a cell phone. The technology is only a small part of the problem. The enforcement logistics would be a nightmare. There are  just too many ways into California. Remember the old Produce Inspection Stops? Even they do not exist any more. We would need a "reverse TSA" at every airport, including general aviation ones. That would all be real hard.

Despite the fact we don't seem to be doing it, generating a large, effective case tracing and surveillance capability would be no more difficult. It would also give us the capability to contain any other outbreaks that were "home grown". More bang for the buck.

To clarify: the enforcement wouldn’t have to be done at the borders. It would be done at shop entrances, which is what I’ve heard they do in some Asian countries.

You can drive in from NV or OR, but you won’t be able to eat in any restaurant, enter any state park, enter any non-essential shop, or enter any kind of attraction. Parks already have parking attendants, many stores already have greeters, restaurants have hosts — they could all check quarantine status of patrons.

It would require the locations to all have people and eventually an app monitoring anyone who wants to go in, and there would have to be some trust for shops to comply. But they could lose more business if they weren’t checking every patron.

And by the way I don’t disagree with you at all. Absolutely I wish the state and country could do contact tracing, adequate testing, etc. The thing about this approach is that it would require very little by government except adopting it. Sure, contact tracing can be plan A, I’m all for it. But I’d love there to be a Plan B being driven by Apple, Google, Amazon, etc.

Yes, it would require everyone to have a smartphone to access non-essential services, but I think virtually everyone has a smartphone. A high percentage of children at my kids’ school qualify for subsidized and free lunches, but every parent has a smartphone. people need cell phones to work anywhere.

[Snorlax94]

I don't know about the legal aspects and maybe it wouldn't be legal under current laws, but the technological aspects are very feasible, though admittedly there would be some complexities to minimize cheating. It wouldn't be foolproof, and it'd be important to make GPS-spoofing the app a crime.

I am pretty sure it is legal under current laws. One state can exclude travel from another state if the is a "legitimate public health reason". I don't agree that it is very feasible however. Not everybody has a cell phone. The technology is only a small part of the problem. The enforcement logistics would be a nightmare. There are  just too many ways into California. Remember the old Produce Inspection Stops? Even they do not exist any more. We would need a "reverse TSA" at every airport, including general aviation ones. That would all be real hard.

Despite the fact we don't seem to be doing it, generating a large, effective case tracing and surveillance capability would be no more difficult. It would also give us the capability to contain any other outbreaks that were "home grown". More bang for the buck.

To clarify: the enforcement wouldn’t have to be done at the borders. It would be done at shop entrances, which is what I’ve heard they do in some Asian countries.

You can drive in from NV or OR, but you won’t be able to eat in any restaurant, enter any state park, enter any non-essential shop, or enter any kind of attraction. Parks already have parking attendants, many stores already have greeters, restaurants have hosts — they could all check quarantine status of patrons.

It would require the locations to all have people and eventually an app monitoring anyone who wants to go in, and there would have to be some trust for shops to comply. But they could lose more business if they weren’t checking every patron.

And by the way I don’t disagree with you at all. Absolutely I wish the state and country could do contact tracing, adequate testing, etc. The thing about this approach is that it would require very little by government except adopting it. Sure, contact tracing can be plan A, I’m all for it. But I’d love there to be a Plan B being driven by Apple, Google, Amazon, etc.

Yes, it would require everyone to have a smartphone to access non-essential services, but I think virtually everyone has a smartphone. A high percentage of children at my kids’ school qualify for subsidized and free lunches, but every parent has a smartphone. people need cell phones to work anywhere.