[jbullock35]

> It's not so much that he knows procedures well, it appears that he has some sort of didactic memory that he has focused on this topic.

It's both. Source: I follow him on Twitter, and I'm a professor of American politics.

[handelaar]

It is the former. The latter is not necessary: lots of those of us with ASD don't need anything close to an idetic memory to hold insane amounts of minutiae about some random topic or other if it happens to be the topic we're deeply interested in