That is a really good question.
I can give you my personal perspective. It's just to give you some statistics out of the U.K. In the U.K., 80% of people have a phone. If you have to get to 80%, it's very, very difficult. I'm optimistic because I think the more contact tracing we can do...the openness that's been discussed and the consent.... As long as people are comfortable that they're not being tracked and their data is safe, I think there's hope, but it's a tough road, in my opinion.