In a way, the Blockchain is like a train that keeps adding cars, each one filled with a set of transactions.

Not saying Dorian invented it (I'm on the fence), but thinking about model trains has helped me imagine how someone might approach inventing something like the Blockchain.

Out of curiosity, if he's lying about not being involved (hypothetically speaking), are there any legal repercussions for him making a public statement that is completely deceptive?

Seems like someone could deny something without technically breaking the law, so I'm not convinced by the legal letter, by itself, although some of the other arguments showing why he's not the guy (like Mike Hearn's post) are very convincing.

Also, everyone seems to assume that it's a binary question, that Dorian either WAS or WASN'T Satoshi, but it seems very possible to me that SN was a cadre of people working on the issue, and Dorian was just one member of a team of people.

Personally, if I was the guy who invented it, I'd very much like to have someone else write the paper!