It's both. "Bugs are inevitable and unavoidable" is a defeatist attitude in software, albeit one that is accepted strongly and broadly.
This is like a belief in karma. It's irrational, and it's completely untrue as far as anyone can tell, but we are all arguably better off by pretending that things really do work that way.
This is like a belief in karma. It's irrational, and it's completely untrue as far as anyone can tell, but we are all arguably better off by pretending that things really do work that way.