What does "global mental design" mean? I didn't mean to imply that he may have spent several years coding...designing a good system often involves a lot more than actual coding. I suspect the creation process was several years in the making even if the actual coding was relatively quick.
I was trying to rephrase what I red some time ago. I don't remember well.
It has to be here somewhere in this forum history anyway. But Satoshi has written a lot of stuff. Searching would be time consuming as I don't even recall any keyword he used.
As for the developpement history, I think I also red that Satoshi showed up on the cypherpunk list, back when Wei Dai made his proposal. Then Satoshi disappeared until 2009 I think.
A full resarch on the historical documents could be appreciated. It could almost deserve a bounty.