According to Alex Wellerstein, a nuclear historian at the Stevens Institute of Technology, they can be divided into two groups. The first group consists of people who are very informal about their interest and are sometimes quite enthusiastic about nuclear technology in general. The second group are those who he considers more than just random people on the internet, and is made of people who are more dedicated, and are often activists of some sort—either anti-nuclear or anti-secrecy. “They are both interesting groups but have somewhat different agendas,” he concludes. Of those in the second group, I encountered a diverse set of backgrounds—scientists, special effects gurus, miners, collectors, academics, truck drivers, artists, writers and students to name a few. – Gizmodo