Re: Contact tracing is about far more than just tracing contacts.
A further problem is that having an app simply spamming low risk people with "get tested" messages threatens to effectively DDOS the testing system at times when it is more under load anyway.
Clearly things are different in Canada. The approach here seems to be don't bother with testing, just tell people to self-isolate. After they've had a few false alarms people will just ignore it on an individual level and on the public level its reputation will plummet and the whole thing will end up being dropped.
Biting the hand that feeds IT
