PS I never suggested Satoshi didn't mine block 1. Personally I think he probably did maybe even a significant fraction of the first 2016 as hashing power during that period of time was much lower then subsequent blocks.
I have strong evidence the same computer AND JUST ONE mined blocks 1-10(edit: or a group of computers turned on exactly at the same time)
Just look at the extra nonce in the coinbase field of the coinbase transaction.
The counter is monotonically incrementing at a constant pace.
Also this can be used to find how many computers/threads where mining at some time (until they get powered-off). Each thread has another monotonically incrementing ExtraNonce variable.
So from that we can infer Satoshi PC Resources. Those resources allowed him to mine a block with 32 leading zeros every 6 minutes.