Origin: The Spirit of the Past - Instant favorite! Instant Love! Instant Obsession!

http://en.wikipedia.org/wiki/Origin_(anime)

Just watch it on Animax today. And I have developed an instant love for it. Not only it features a Science Feature, my favorite genre, but it features concern for nature and the consequences should we overdo our quest for perfection. It teaches me valuable lessons, and a full review will be coming once I can find some way to re-watch it.