It is similarly easy to look ahead from a pessimist standpoint (e.g. how will this bubble collapse, and who will pay the bill for the hype?). The problem rather is that this overly hyped optimistic standpoint is much more encouraged form society (and of course from the marketing).
> There's also the other category who are terrified about the consequences for their lives and jobs, and who are driven in a very human way to rubbish the tech to convince themselves it's doomed to failure.
There is also a third type who are not terrified of AI, but of the bad decisions managers (will) make because of all this AI craze.
If you can see the promise, you can see a gap to close between current capability and accomplished product. The question is then whether there's some barrier in that gap to make the accomplished product impossible forever. Pessimists tend to have given up on the tech already, so to them any talk about closing that gap is idle daydreaming or hype.
There's also the other category who are terrified about the consequences for their lives and jobs, and who are driven in a very human way to rubbish the tech to convince themselves it's doomed to failure.
The optimists are right of course. A nascent technology at this scale and with this kind of promise, whose development is spurring a race between nation states, isn't going to fizzle out or plateau, however much its current iterations may come short of any particular person's expectations.