I worry about AI itself - not the companies developing it. Back when I started worrying about it 12 years ago, influenced by Stuart Russel and Nick Bostrom I was expecting it to take at least 50 years before we had AI that resembles what we have now, so suffice it to say that the fact that we're here already doesn't exactly ease my worry.
I've yet to hear a single convincing argument against the idea that even attempting to create something more intelligent than us is a really bad idea - very likely to be our last bad idea ever. Whether Mythos is actually as capable as Anthropic claims is beside the point for me. Even if it's not, it's only a matter of time until someone creates one that is.
