---
created_at: '2016-05-29T22:25:41.000Z'
title: 'Null References: The Billion Dollar Mistake – Tony Hoare (2009) [video]'
url: https://www.infoq.com/presentations/Null-References-The-Billion-Dollar-Mistake-Tony-Hoare
author: quickfox
points: 48
story_text: 
comment_text: 
num_comments: 79
story_id: 
story_title: 
story_url: 
parent_id: 
created_at_i: 1464560741
_tags:
- story
- author_quickfox
- story_11798518
objectID: '11798518'
year: 2009

---
[Source](https://www.infoq.com/presentations/Null-References-The-Billion-Dollar-Mistake-Tony-Hoare "Permalink to Null References: The Billion Dollar Mistake")

# Null References: The Billion Dollar Mistake