Zimbardo has two premises/theories and I would say one is completely normal behavior not warranting much further study (maybe a study just to disprove it) and another that probably warrants further study. Video and computer games making it distracting for young males in classes or work is just normal behavior. My experience with male friends and colleagues who both played games and those who didn't show it's really just a desire to do something more interesting than sit in class or spend time working. I've been in classes myself where I would prefer playing games, reading a book, or just walking around outside. It's not computer games that are making males distracted in class, but computer games have probably become most young males preferred recreational activity. The other premise regarding porn versus other romantic interactions has actually become a more popular topic of late. The premise is basically the entire point of the movie Don Jon starring Joseph Gordon-Levitt as having difficulties with romantic relationships because how porn has influenced his ideas of romance. There is also a greater cry for study from people are trying to figure out if porn habits influence college rapes. I think it will be difficult to prove as a kind of chicken-egg scenario, but there will likely be a significant correlation.