You are badly mixing things up here -- are you interested in the market aspect or the technical aspect? On top of that, it boggles my mind seeing noobs get worried about the price going lower and lower. If you are here solely to bank on Bitcoin in a short period of time, you obviously landed in the wrong place. This market has proven to show no mercy, so better adapt to it, or just go back to where you came from. In more friendly terms, markets as a whole are all centralized, but the underlying technology is something that is decentralized, regardless of what others want to make you believe. It's important to understand the difference in this case, because what happens on exchanges (the market) and Bitcoin itself are two different worlds....