The block size is an intentionally limited economic resource, just like the 21,000,000-bitcoin limit.
I can not reconcile this statement with the comments made by Satoshi in the rest of the thread. Apparently nobody knew it was "intentionally limited" back then, including the designer.
I'll accept that you and other developers changed your mind at some point about whether or not to increase the block size, but that leaving it limited was the plan from the beginning is not at all credible.