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Type checking is a symptom, not a solution
2025-08-31
We’ve created architectures so tangled, so dependent on invisible connections and implicit behaviors, that we need automated tools just to verify that our programs won’t crash in obvious ways. Within the context of how we currently build software—with sprawling inheritance hierarchies, deeply nested function calls, and invisible dependencies threading through dozens of modules—type checking does indeed catch bugs that would otherwise be painful to debug. We invest enormous effort into making sure that functions can be composed safely, that data structures maintain their invariants, and that null pointer exceptions are caught at compile time.
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