Thank you for pointing that out. People are "who," not "that." Too many people don't seem to know that. In the interest of education (I was an English prof for 34 years) I sometimes correct people (nicely) but I'm always afraid I'll offend. And I gave one clap for a while until I found I can give more. I only give 50 to articles I really like. Others might get 20 or 30. It depends on my mood. I enjoyed your article.