Mining pools are common today where users pool their resources together and share profits accordingly. Such pools today can account for significant proportions of a network's hash power and they're are risks shold a coalition of malicious parties form a pool with 51% of the mining power.
My question is, did Satoshi ever forsee this coming or consider it as a possibility that may arise? Did Satoshi ever provide any thought about the positive/negative implications of the existence of mining pools?