4 ms·
This is a good summary from someone credible (IMO): http://www.youtube.com/watch?v=ExyNf3u7iQg http://www.youtube.com/watch?v=ExyNf3u7iQg
by joering2 13y ago
This is a good summary from someone credible (IMO): http://www.youtube.com/watch?v=ExyNf3u7iQg http://www.youtube.com/watch?v=ExyNf3u7iQg