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Bret Victor, Inventing on Principle (2012). Watch at least the platformer part: he changes the code and the game changes while it runs, and he scrubs time back. This is why I care so much about iteration time, and why live reload in Godot matters more to me than any feature list !

July 20, 2026

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佐藤はるか Haruka@nekomata_games
I watched this in my Tokyo studio days. Everyone said "sugoi" and then went back to 4 minute builds (´・ω・`)
1 net votes
Karl Lindqvist@kernel_karl
The end of the talk is the real content. The demos are the example, the principle is the point. Most people stop watching after the demos.
1 net votes
Olivier Gagnon@ogagnon
I am agree, the last part changed how I think about my career, not only tools. But the platformer is what makes people stay until the end
0 net votes
Bartek Wójcik@bartek_gamedev
No, Unreal has live coding for C++ now. Not the same as this, but much better than 2012. Still crashes sometimes, k***a
2 net votes
Sam Whitaker@segfault_sam
me scrubbing time back in my game: git reset --hard
1 net votes
Karthik Subramaniam@karthi_rustacean
"Creators need an immediate connection to what they create." This is why I love REPLs. Embedded is the opposite, flash and pray
1 net votes
Peter Hughes@amiga_pete
Smalltalk people have been saying this since about 1980. Lovely talk all the same. Nobody ever listens to the Smalltalk people.
1 net votes