Barry W. Fitzgerald is a physicist, science communicator, and superhero fanatic. He has a PhD in computational physics, and has published a number of scientific papers and popular science books on superheroes. He’s also the host of the YouTube channel The Superhero Scientist. He has spoken about science and superheroes at schools, universities, and public events around the world. Barry has seen Avengers: Infinity War more than 50 times, and his superpower is a closely guarded secret.