I agree these statements from these long term researchers about them being surprised by the rate of progress are surprising.
To clarify my own thinking here, it's totally reasonable to me that people are surprised if:
1. They weren't previously aware of AI research (surely 99% of the population?)
2. They were but had stopped paying attention because it was just a long series of announcements about cool tech demos nobody outside big corps could play with.
3. They were paying attention but thought scaling wouldn't continue to work.
My problem is that people like Sam Altman clearly aren't in any of those categories and Hinton shouldn't have been in any, although maybe he fell into (3). I personally was in (2). I wasn't hugely surprised that ChatGPT could exist because I'd seen GPT-2, GPT-1, I'd seen surprising AI demos at Google years earlier and so on. The direction things were going in was kinda clear. I was a bit surprised by its quality, but that's because I wasn't really paying close attention as new results were published and the last InstructGPT step makes such a big difference to how the tech is perceived. Actual knowledge doesn't change much but once it's housetrained, suddenly it's so much easier to interact with and use that it makes a step change in how accessible the tech is and how it's perceived.
I think I was more surprised by the joining of LLMs with generators and how well AI art works. It does feel like that happened fast. But, maybe I just wasn't paying attention again.
So I guess where we differ is that I don't take their surprise at face value. The direction was too clear, the gap between the threats they talk about in the abstract and the concrete proposals are too large and too lacking in obvious logical connection; it feels like motivated reasoning to me. I'm not entirely sure what's really going on and perhaps they are genuine in their concerns but if so it's hard to understand why they struggle so much to make a convincing case given they are certainly intellectually equipped to do so.
The two posts you linked are interesting and much better argued than the website this thread is about, so I'll reply to them directly.