This article teaches me if decentralization is better than centralization.

Decentralization is separate groups which have freedom to do something, and can collaborate to other groups if there are troubles. Remember this word : "Two heads are better than one." Means if decentralized systems makes any troubles faster to break than centralized systems.

Don't follow what your parents said if it's bad, you need to lie. You better lying if lying can bring peace. Don't be fanatic with bad things brought by old generation, if you want better. The era of modern technologies has been entered, don't follow the old era's bad thoughts.

Technologies bring ourself easier, if it used for good. Leaving technologies bring yourself harder, same as you do suicide slowly. God created humans to be use technologies, this differs humans from animals.