I have not used a debugger in anger in perhaps a decade. I write tests, and if that's not enough, I write more tests.
Tests stick around and prevent future problems, whereas the debugger only shows me something once.
But tests show you if a bug is happening, they don’t help you understand the underlying cause of the bug. In a decade, you haven’t hit a compiler codegen issue, a silicon erratum, a race condition, or anything that required actually spending effort understanding the causal path?
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