I tried to write up a longer comment breaking it down in laymans terms (https://news.ycombinator.com/item?id=22536734 https://news.ycombinator.com/item?id=22536

I tried to write up a longer comment breaking it down in laymans terms (https://news.ycombinator.com/item?id=22536734 https://news.ycombinator.com/item?id=22536734), not sure if it's helpful but I figured I'd at least give it a go. It basically boils down to there is a mutation in this strain of virus that seems to give it an ability to infect cells better (gain of function = new feature or enhanced feature of a protin, nothing to do with mathematical functions or the lambda calculus), and this paper discusses what it is and how it's hypothesized to work.