Some numbers, however shaky, that AI-written code is secure.
It could become that way, but thus far no evidence has been presented for it. The best we have right now is that you can spend $20 in tokens to write a patch and then $20K to find a vulnerability in it. First, that's not measuring the same thing. Second, it's not very impressive.
50 years is a long, long time, so I wouldn't bet against it. But I agree that we don't have evidence for it yet.
What are the numbers on how secure is human written code? We should have something to compare AI numbers to.
It seems more likely to me that you could spend $20 to find a vulnerability in a piece of software that costed you $20k in human labor.