Hacker News stories for 6 AM on Tuesday Oct 02, 2012

0.985 Online Python Tutor: Learn programming by visualizing code execution comments

0.622 WTF is VoLTE (or - why voice will suck on 4g for the next 2 years) comments

0.600 You won’t believe how nice Notch’s office is comments

0.432 Bitcoin Non-Technical FAQ comments

0.408 A behind-the-scenes look at LinkedIn’s mobile engineering comments

0.178 New Design for Nyan Cat comments