alt Hacker NewsRunning an experiment and deciding based on the results is not hypocrisy, it's engineering, 100%.
Saying you have no intention of doing something then doing it is not engineering, it's being dishonest. He could have said "well decide when we see the results", why didn't he?
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Maybe he didn't think it would work. Maybe even if it does "work" they'll keep the zig version anyway. Maybe further study is needed beyond existing compiling/test-suite. Intentions and perspectives change over time, even only a few days, without dishonesty.
I'm guessing that if I said it ... that we have no intention of re-writing in rust ... that what I mean is "we have no intention of spending the extreme cost it would take to rewrite". When I discover the cost model is completely different that changes things.
If he wasn’t willing to change his mind after he saw the results, then why would he do it at all? Can you explain the false motivation that you think he communicated in the original kerfuffle about this?