Tim's character

Yeah, I don't think he was as deep, smart, or as understanding as he thought he was. He seemed like a bit of a dolt who just wanted to make up clever excuses for not being like everyone else and for not wanting to work an honest job for a living. In fact, the best part of the movie was Bob Odenkirk's monologue.

Actually I think he took on this whole defensive and negative attitude, because he was probably tired of defending his choices. Of not being "normal". I think he was genuinely happy doing what he did, but it can get grating after a while when people keep telling you it's weird or not "adult". I feel he was being just honest and real about how he felt, and didn't feel like sugarcoating his perception of living and reality. That's why I think he gravitated towards janice. She was a mess, and just like him, she was honest and truthful about it.

I don't think his character is intentionally negative. He's lost and confused with the world. He's confused by everyone because they don't think the way he thinks. He wants someone who understands him. And Janice does. It's all based on opinion. He's no necessarily a "deep" thinker and I don't think he thinks that of himself. I think he knows he doesn't think like everyone else. He's confused as to why people act the way they do, why they're SO serious about life. When he had this conversation with Hal Baker, the news reporter,-
"Hal Baker: Why'd you choose to do this robot thing...
Tim: Why'd I choose to do it, Umm. It just happens to be my talent. And I feel like, I also thought, you know, it might be something to brighten people's lives up.
Hal Baker: Whaddya mean?
Tim: I guess I feel that modern life can be alienating, and it can be like you're mindlessly walking through it. Like a robot. And you can feel lost. I guess I just want people to know that they're not crazy, that everybody at home and everybody watching the show today, you're not crazy. I mean life is crazy, right? Maybe if you see a giant mechanical man, you know, wandering down the street toward you, maybe that it could put it into perspective for you, you know?"- I feel like he just got genuinely confused because right after that bit, Hal Baker simply said something like "Have you ever thought about putting the moonwalk in you act?". That is what this movie is about. Those lines are the key to understanding this movie. When we express ourselves fully, no one cares. They want to see something entertaining. And Tim wants people to see his heart and see their own hearts.