It is not so true that "prayer changes things" as that prayer changes me and I change things. God has so constituted things that prayer on the basis of redemption alters the way in which a man looks at things. Prayer is not a question of altering things externally, but of working wonders in a man's disposition.
Japan is the most intoxicating place for me. In Kyoto, there's an inn called the Tawaraya which is quite extraordinary. The Japanese culture fascinates me: the food, the dress, the manners and the traditions. It's the travel experience that has moved me the most.
I think any new technology that helps connect and create social cohesion is great. But at the end of the day, you and I are analog creatures. We have to take 'oohs and aahs' and convert them to 0s and 1s and then convert them back to 'oohs and aahs.' Narratives that work in social networks are the exchange of stories that are told well.