Lines of code that changed everything (2019)

&gt; The Roomba’s Guidance System<p>&gt; Date: 2002<p>&gt; Established a new way for technology (and cats) to move in the physical world<p>&gt; (define-behavior (bounce :start-when (or (bump?) bounce-trigger? ) :abort-when (bump-edge?) :onetime? t))<p>Does anyone closer to the source here know if Roomba is still written in Lisp?

The fast inverse square root also deserved to be there. It ushured in the age of real 3d games. And killed SGI.<p><a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Fast_inverse_square_root" rel="nofollow noreferrer">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Fast_inverse_square_root</a>

The story about the Vancouver Stock Exchange&#x27;s rounding error deleting half the value of the exchange over time and then being undone in a day leaves me with so many questions. Who gained and who lost from the fix? How did peoples&#x27; behavior change thereafter?

Great article, I feel like the quality of Slate has declined significantly in these past few years, so much so that I incorrectly remembered reading this much earlier than 2019.<p>I wonder if the reason Stuxnet isn’t on there is because its impact is yet to be seen.

It&#x27;s disappointing that such an elaborate article omits that the &quot;Like&quot; was originated in FriendFeed which Facebook had bought. Upvoting was obviously a thing before FriendFeed too, but its specific form to signal the public with your opinion on a social feed had probably started with FriendFeed. Facebook had literally bought the Like button.

lines of code that change everything:<p>#define true 0<p>#define false 1

This is an incredibly good article, like whole standard deviations above the average article quality on that site, for people who are wondering. It took a lot of research to track all those lines down and I&#x27;m glad someone took the time to do it.

Previous discussion: <a href="https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=21648568">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=21648568</a>

Interesting stuff. Did HSTS seem out of place to anyone else? Not that it&#x27;s not important, but compared to the rest of them, it hardly seems like it &quot;changed everything.&quot; And from the gut, I&#x27;d guess that CORS has done more than HSTS to reduce harm on the internet.

tar xzf netbsd-1.0.tar.gz<p>&quot;forking&quot; netbsd established competition in the &quot;free&quot; BSD space by OpenBSD and FreeBSD. The FreeBSD system in particular was the basis for thousands of commercial products.