nk cells

Most of my favorite long-standing discussions with friends and family tend to resolve around definitions. My good friend Paul and I have had hours upon hours of discussion about the nature of the universe - he calls his perception of the order of the universe "god," and I call myself an atheist (interestingly, that picture was taken by Paul), though in practical terms I don't think our beliefs are really that far apart. He says his definition allows him to engage with religious people, I say it just causes confusion. In my first year of graduate school, I used to argue endlessly with my class…