Indeed! And what about the 7th phase shift? I must be missing something here.
We're pointing to just two particular transitions in all of human history. I
fear we're calling them "phase shifts" to convince ourselves that there is a
simple underlying phenomenon which has law-ordained "phases". How can we assume
that there will be a coherent series of N>2 such "phase shifts"? How can we
assume that they will follow some simple mathematical function with just a
handful of parameters?
I guess this makes me even more of a singularity skeptic than Hanson. He
marshals powerful economic arguments against naive singularitarianism. But then
he forecasts a similarly epochal transition to whole-brain emulations, yet seems
worried that it needs more support than its own inside analysis provides. So
goes back to an outside extrapolation from past data points a la Kurzweil, but
he extrapolates from only 2 points, and says the resulting curve can't really
tell us anything beyond the 3rd point. By contrast, Kurzweil marshals multiple
technological trends each with dozens of past data points. If we call that
naive, then how confidently can we extrapolate along a single trend with only 2
prior data points?
That doesn't feel like a curve to me. It just feels like a prediction of a 3rd
transition that will have similar significance to two previous transitions. But
being similar in significance is not really evidence of being similar in
explainability by some simple underlying lawlike mechanism. The word choice of
"phase" seems like sleight of hand here. If instead we talk of "epochs" or
"periods", we're less likely to bias ourselves towards a phantom unifying
phenomenology of what could just be three not-very-causally-related transitions.
My critique here seems obvious and unoriginal, and the people it's aimed at are
very well-informed and thoughtful. So I apologize if this has been addressed
elsewhere already. What am I missing?
1Ege Erdil2y
I think regardless of whether AGI is the cause of the phase shift, it will
definitely be a mark of the next phase in this model, much like how atomic bombs
weren't a cause of the Industrial Revolution but they are still a notable
phenomenon inside it. AGI being the cause is probably ~ 65% for me.
I have no idea. The model will obviously fail to work once growth becomes so
fast that we reach physical limits, much like the hyperbolic model, but my
thinking here is close to Robin Hanson's: it's ~ impossible to say what the
fourth phase shift would be like, but the timing would probably be only a few
decades (at most) after the third phase shift.
Here's a vastly longer and more detailed analysis of how accurate Ray Kurzweil's 2019 predictions were: https://www.militantfuturist.com/how-ray-kurzweils-2019-predictions-are-faring/
Also see this:
https://www.militantfuturist.com/will-kurzweils-2019-be-our-2029/
And this:
https://www.militantfuturist.com/the-kurzweil-predictions-that-dont-matter/