Copilot appeals to bad developers, which it's going to learn from. It's been trained on a codebase that is mostly bad and/or outdated. It will produce code that

Copilot appeals to bad developers, which it's going to learn from. It's been trained on a codebase that is mostly bad and/or outdated. It will produce code that is usually bad and the bad programmer using won't properly review and fix it, so it will never learn how bad it is. If copilot replaces anything, it will be the legion of failed developers that end up working for Oracle and Comcast currently doing god-knows-what with all their time. Those systems are already giant festering mounds of technical debt; imagine how bad it will get when literally no human has ever seen the code producing that weird bug.