When I see juries in American courts, for example when I've served on one, it seemed like a group of people who take their job quite seriously. You are correct

When I see juries in American courts, for example when I've served on one, it seemed like a group of people who take their job quite seriously. You are correct in that what a jury gets is a very curated set of information. The intention being to keep the jury focused on the details of a very specific situation with evidence that is processed in such a way as to be as "reliable" as possible. It is by no means an accurate or incorruptible system. When we design and prove out a better, more robust alternative, I'll be eager to learn about it.