i`m king of fucking dump

1. Literal thinking. One of the many traits common within neurodivergent people, especially of these who might be on autistic spectrum is literal thinking. Barry displayed such characteristic in the beginning of second season, while visiting a house of Mr. Kuzino who was mourning the loss of agent Moss. Mr Kuzino said that he wanted to kiss a gun, and Barry took it literally without realising that Mr. Kuzino used a metaphor for s*ic*de.

2. Autistic meltdown. As we can notice, Barry had tendency to heart himself physically when he feels angry, frustrated, ect. (slapping his head, face). Barry had a huge anger issues, and mostly he directed his anger inward (autoagression) but the scene in the car when he was slamming the wheel chair and his face repeatedly could be a serve as a displation of autistic meltdown. Also, the indication of autistic meltdown could serve a moment after Barry broke the glass after the performance in the theatre after he killed Chris.

3. Sense of alienation. The scene from the first season where Barry killed Ryan Madison, and the whole acting group decided to mourn his loss by creating a evening dedicated to Ryan, sending invitation through Facebook. "I don't have Facebook”. This phrase demonstrated that Barry in a way existed outside of a social and cultural norms.

4. Prone to be manipulated. I have a tendency to think that Barry was manipulated his whole life, as a person, as a soldier, as a k*ller.I can't compare him being manipulated as a soldier because it will unfold a greater scenes but Barry definitely was manipulated by Fuches, who exposed Barry's skills to his own advantages. Honorable mention: Sally and mr.Kuzino.

5. Lacking sense of "self" and compensating it through acting. For many neurodivergent people, especially these who high-masking, the experience of fragmented "self" is not uncommon. While Barry was a terrible actor, acting was an outlet for him, making it's possible for him to realise many important thing about himself through acting, while being comfortable because he wasn't expressing himself, he was acting which made it "appropriate" to others.

6. Desire to belong. His sense of alienation could have made him into a person whose desire might be to belong somewhere. Acting courses gave him this opportunity, and that's why Barry was devastated when mr. Kuzino cancelled his acting classes and big premiere in the theatre.

7. Inability to "read" the crowd: Back to the episode when everyone in the acting group was mourning the d*ath of agent Moss, showing their sympathy to Mr. Kuzino. Barry didn't puck up on the mood of the people around him, being solely focused on the future performance.

It's been proven that L is undoubtedly autistic. But such a theory has never aroused about Light, and I think it's a big loss. So, it was scientifically proven that neurodivergent people's brain receives and process information differently but Light shows many times that he understands L's logic and process of thinking far too many times which could serve as a prove that they could share the process of thinking. I mean, skillful experienced people from the task force, who were on police duty for many years couldn't do that but Light could.

Light has black-white thinking. Black-white thinking is also one of many characteristics that could be associated with autism (I'm not saying that every autistic person has to have this feature). However, it is an arguable matter because Light found a death note at the age of seventeen when his prefrontal cortex wasn't fully developed yet when he was prone to such way of thinking due to neurophysiology and died at the age of twenty-three without his prefrontal cortex being fully developed yet, meanwhile in cases of most people prefrontal cortex usually develops at the age of twenty-five or even later.

Hyper fixation. The desire to change the world (which solely could be based on black-and-white thinking could hardly be called a "hyper fixation" but in Light's case, I think it would judging by the fact that he was ready to give up his life into service of the goal he created for himself.

Lack of interest in intimacy/personal life. This also could be attributed to strong hyper-fixation showing that Light has a lack of understanding and urge to experience human basic desires that could be connected to his strong hyper-fixation.