Research into drugs produces so much data that it is a long and tedious process to create and find a new drug to treat different diseases. Artificial intelligence is helping the research process in finding patterns and keywords most helpful in the large amounts of data cell research has.
The group asks Raj why he is being deported, and he indicates that his visa is only good as long as he is employed at the university. Since his research is not going well, his visa has expired. He then reveals that he's been messing up Wikipedia entries, among other activities, to pass the time. This clip shows why students needs to check Wikipedia articles before they use the articles for academic or work projects.