3 ms·
Here is @kellan's full presentation on youtube: http://www.youtube.com/watch?v=w4LExVkv4Pw http://www.youtube.com/watch?v=w4LExVkv4Pw
by sitong 14y ago
Here is @kellan's full presentation on youtube: http://www.youtube.com/watch?v=w4LExVkv4Pw http://www.youtube.com/watch?v=w4LExVkv4Pw