It makes sense to me that you're going to look at the applications that companies submit. When you are looking at them, I would just say that the real role of an application, in my view, would be that it's got to operate on the front end with the API firms, Apple and Google, which are going to be on the operating systems. That's going to, I think, be the best way of triggering adoption rates, and the application will then have to speak to provincial databases on the back end. I think we ought to be working with Apple and Google. As long as we're looking at the DP-3T standard, and certainly that work can feed into it, I think it's a good idea. I would encourage you to pursue that.
By the way, on the privacy side, these companies may well be agents pursuant to PIPEDA, at least in Ontario, and so they would be captured by our privacy regime as it relates to health information.
My only other question on digital contact tracing is with respect to adoption rates. We see that Singapore has an adoption rate of under 20%. That's not going to be a really important contribution, I would say, in some ways to contact tracing.
Can you speak to some of the limitations of digital contact tracing?