Is it possible to know when one becomes more likely than the other? That's a really good question. I would imagine when we know if vaccines are effective at blocking transmission, then that suggests that maybe, you know, it might be possible to eliminate the virus from various regions. And conversely, if in the next six to 12 months we see evidence that immunity does wane kind of as quickly as, say, maybe flew, then that might suggest that that path is is more likely. But i would say that, you know, i sound like a scientist. Now, there's a lot of research to be done to really know.