John Carmack's arguments against building a custom XR OS at Meta

Re:John Carmack's arguments against building a custom XR OS ... by lokar on Friday August 29, 2025 @06:40PM (#45070216)

I saw the same thing at Google. A distinguished engineer tried gently at first to get a Jr engineer to stop trying to do something that was a bad idea. They persisted so he told them very bluntly to stop. HR got involved.

I even found myself letting really bad things go by because it was just going to take way to much of my time to spoon feed people and get them to stop.

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Re:John Carmack's arguments against building a custom XR OS ... by LPisGood on Saturday August 30, 2025 @02:07AM (#45072275)

What kind of thing is bad enough that it warrants multiple discussions without the junior engineer getting the hint that it’s a bad idea?

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Re:John Carmack's arguments against building a custom XR OS ... by knorker on Saturday August 30, 2025 @03:49AM (#45072742)

A junior engineer can make an API that can basically live forever as tech debt.

(Especially if it's an "API" persisted to disk)

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Re:John Carmack's arguments against building a custom XR OS ... by lokar on Saturday August 30, 2025 @01:37PM (#45076494)

I can’t say much without it being clear who it was, but a critical low level thing.

And the Sr was generally a very nice person who did not give much weight to levels, willing to engage with anyone.

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