Ray Casting

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It works pretty well but it's not the fastest way of doing it can you describe what ray casting is. So that means that in like the early Wolfenstein levels you're in a small jail cell going out into a small hallway. It's super efficient for that because you're only stepping across three or four blocks. But then if somebody makes a room that covers our maps were limited to 64 by 64 blocks, it would go pretty slow. And then the physics of our universe seems to be competing this very thing so this maps nicely to the actual physics of our world. Yeah you get like I follow a little bit of something like Stephen Wolfram's work on I've interconnected network information states

John Carmack is a legendary programmer, co-founder of id Software, and lead programmer of many revolutionary video games including Wolfenstein 3D, Doom, Quake, and the Commander Keen series. He is also the founder of Armadillo Aerospace, and for many years the CTO of Oculus VR. Please support this podcast by checking out our sponsors:
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Books mentioned:
Hackers: Heroes of the Computer Revolution: https://amzn.to/3SkNZER
Game Engine Black Book Wolfenstein 3D: https://amzn.to/3QlOqg8

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OUTLINE:
Here’s the timestamps for the episode. On some podcast players you should be able to click the timestamp to jump to that time.
(00:00) – Introduction
(09:49) – Programming languages
(40:53) – Modern programming
(50:55) – Day in the life
(58:45) – Hard work
(1:01:58) – Pizza and Diet Coke
(1:04:43) – Setup
(1:30:01) – id Software
(2:02:50) – Commander Keen
(2:09:36) – Hacker ethic
(2:17:16) – Wolfenstein 3D
(2:37:14) – Doom
(2:51:34) – Quake
(3:15:55) – John Romero
(3:23:42) – Metaverse
(3:52:04) – Elon Musk
(3:57:59) – Mars
(4:07:01) – Nuclear energy
(4:10:39) – AGI
(4:57:51) – Andrej Karpathy
(5:00:50) – Martial arts
(5:09:49) – Advice for young people
(5:18:49) – Meaning of life