I’m almost the exact opposite. I’m pretty articulate when I speak in normal, unformal conversation — however put me at a podium and I stumble. Writing however; when I write I find that it’s much easier to put thoughts and ideas into relatable and easily-digestible bits of information. I have to see things to really understand them, I have to get down and dirty with high-level concepts in order for me to udnerstand their applications. When I write, it allows me to map out the different aspects of a concept and compartmentalize it in my mind-brain.