From Computerphile.

Millions of lines of code – how do you keep them bug free? Facebook’s Professor Peter O’Hearn talks us through "Infer" their code checker which dallies with the idea of undecidability.

EXTRA BITS: https://youtu.be/7rYr6EQS7Co
Turing & The Halting Problem: https://www.youtube.com/watch?v=macM_MtS_w4
How Turing Machines Work: https://www.youtube.com/watch?v=dNRDvLACg5Q

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This video was filmed and edited by Sean Riley.

Computer Science at the University of Nottingham: https://bit.ly/nottscomputer

Computerphile is a sister project to Brady Haran’s Numberphile. More at http://www.bradyharan.com