As in my own thought satoshi nakamoto,is only the first person who created this we called blockchain in cryptoworld,he cannot know  that this technology he created become successfull and become known all over the world, and the entire global would adopt this kind of technology,so if i am satoshi nakamoto now ,first i can do  is to improve the block chain that all the transaction in the exchang market will be fast and reliable and all the market caps is  low fare and lastly i secure all the system that its away from hacker and spammer  because i create a safety and strong defense wall against hacking system.