I can only go by what you wrote. > If you have basic knowledge of that sort, you can kind of skim until the mid point, where we find the above factoid. I repl

I can only go by what you wrote. > If you have basic knowledge of that sort, you can kind of skim until the mid point, where we find the above factoid. I replied to your comment because I read the article first and actually did learn this bit about the immune system response which is in the first half. If I had read your comment first I would likely would have skimmed the article (or even skipped it altogether) and missed it. In that situation your comment would have directed me away from learning something new. I'll continue to try to read articles before comments in the future.