As someone who's simply asking out of curiosity, I've tried looking into the topic myself, but often times I run into answers with little or no detail on the subject. Sometimes the question is more focused or directed towards something else in the system.
What I want to understand isn't the effects of being asymptomatic, but rather, how does the whole process work? Why is it different person-to-person, and what exactly is going on behind the scenes at a biological level? Does one person just have a stronger immune system able to suppress the virus longer? Or a more reactive Immune system that quickly tackles the virus before it can proliferate to threatening levels? Perhaps the virus itself is still somewhat dormant or not fully awake yet?
In short, what EXACTLY causes one to be asymptomatic and in turn, become a carrier rather than someone who looks like a walking corpse?