I simply cannot believe that the man who wrote this:

"Commerce on the Internet has come to rely almost exclusively on financial institutions serving as trusted third parties to process electronic payments. While the system works well enough for most transactions, it still suffers from the inherent weaknesses of the trust based model."

Also wrote this:

"the parking fee + gasoline costs $10 now to get there from my home and i would go there more often with my mother for shoppings."

Look at the precision which satoshi used when writing his posts.

https://bitcointalk.org/index.php?action=profile;u=3;sa=showPosts

Punctuation and grammar is sophisticated and exact.

Then look at the letter on this page
http://www.businessinsider.com/dorian-satoshi-letter-and-train-2014-3#ixzz2vCSq2huK

No way, these are by the same person.