1: To clarify, people who are saying this is wrong because null is in fact very terrible are proving my point, which is:https://twitter.com/wycats/status/910514986228768769 …
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3: the problem is so bad, they think, that we shall pay any price, bear any burden, meet any hardship, to rewrite away from them.
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4: the "billion dollar mistake" implies that. It's so costly that it's worth any cost to rewrite away from it.
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5: My point is that there are worse costs, and you should still evaluate the worst architectures in terms of them.
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6: I'm definitively *not* saying null is no big deal.https://twitter.com/wycats/status/728985072586526720 …
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7: I'm on the Rust core team, and have rewritten code to Rust.https://twitter.com/LisaDanz/status/513428742786387968 …
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8/8: I just don't think "getting rid of null" is *alone* a justification for losing months or years of feature development. Count your costs
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