We already had a discussion on this topic a few days ago and I stand by my opinion that we have not yet developed such high-end technology to create a cryptocurrency (especially a cryptocurrency like bitcoin having tremendous potential and proven track record). I am not dismissing the possibility but the probability is lower than 0.01% in my opinion. No one can find the answer until Satoshis disclosure.
Exactly, Bitcoin is developed with technology that we know already but he migrated them with different talent he had and names it as decentralized currency. Really he is genius in making digital currency and now today all over the world are talking about bitcoin. Techniques will come to mind when has an attitude to do it different which should be unique to other currency.
True he is definitely a genius...