You can't productively argue with someone by splitting your position into 280-character-long bites, each of which can be easily quoted out of context.
The problem isn't that Twitter is split into small bites. Essays do that with paragraphs and sentences as well. It's that Twitter is not structured in a way conducive to conveying an argument.
you're not conveying an argument, you're having an argument - which will never be resolved. The best you can hope for is that one of you blocks the other without wasting too many hours of life.
Blogging is brain dumping something I thought was interesting I worked on. Slight hope it boosts my career somewhere down the line.
Tweeting is brain dumping something while you were drunk. Slight chance it tanks your career somewhere down the line.
Blogging is for hit posts, tweeting is for ... something that rhymes with hit posts
You must be thinking of "bit posts", because they're so small :p