AggressiveProgressive:I think that technology is increasing somewhat exponentially because it is just common sense that technological advancement often (but not always) facilitates further technological advancement. I think it is pretty apparent that there was more advancement in the 20th century than the 19th century, and more in the 19th than the 18th, going back to the fall of the Roman Empire.
After reading Seidensticker's book I'm not so sure of that. His point is that the overall rate of discovery and advance has been fairly constant since the start of the Industrial Revolution. He says the huge leap was made with the rise of the scientific method and cheap printing in the Enlightenment before that, he'd agree with you, things went very slowly. But after the 19th century kicked the Industrial Revolution into high gear, things have been fairly constant overall since then.
He says we have to be careful not to misconstrue rapid advances in specific areas with overall progress or lack thereof. For a while airplane technology was advancing very rapidly. Now it's not. (Let's ignore avionics for a moment, that's really computers, right?) Cars advanced pretty rapidly for a while, but aside from us cramming more electronics inside them, progress is not so fast now.
Much of the hybrid car technology that's being touted in the media is based on technology that's over a hundred years old. It's taken us that long to make it economical in comparison to the high efficiency in IC motors we achieved around the turn of the 20th century (with a boost from microprocessor controlled fuel injection and transmissions.). And there is stuff that's notoriously resistant to improvement, batteries being the chief example of this.
Note that he's not saying there isn't any startling advances and progress. It's just that this jumps and flits from narrow area to narrow area on our vast tree of technologies. Hence his spotlight model.
The key question is are these bursts of activity coming faster and faster and spreading over wider and wider areas of the tree? Are the spotlights growing more numerous, persisting longer and appearing more frequently? Seidensticker would probably argue no.
Or maybe a better question is, and one I hope to pose here, is there anything we can do to make the spotlights more numerous and persist longer? The Internet is slowly helping scientists in the developing world to participate and contribute to our growing edifice, something they couldn't do very cheaply before. That's one thing that might help. Maybe you can think of others. How do we find the damping mechanisms and compensate for them?
AggressiveProgressive:
I do agree though that every technology doesn't simultaneously advance exponentially. That is just ridiculous. However, there are very few areas in which little or no progress is being made.
And I think Seidensticker would agree with you. Even in the areas that we ignore as "low tech" (They were very high tech once. We need to remember that.) still advance however slowly. We can even be surprised when serendipitous discoveries in some unrelated area starts a burst of activity in an area we thought as mostly quiescent. Computers improving IC engines for example.
AggressiveProgressive:One point that you did not consider though in this last post is that many remarkably intelligent transhumanists/singularitarians have accepted the "Hard Takeoff" scenario, and they really don't care about the details of whether technological advancement is exponential or not.... I do think it is likely that AGI will be developed this century though.
Yeah, I have similar feelings about it. It's not just AGI; it's the massive improvements allowable by molecular manufacting. Advanced nanotechnology will enormously speed up many engineering experiments because:
- Materials will be largely flawless and built to atomic accuracy. Less stress testing needed, mathematical stress models are simpler, etc.
- Microscopic chemistry and biology labs can work in parallel at molecular speeds. Drugs, catylists, alloys, etc. can be tested much faster.
But a lot of the hard takeoff seems to really hinge on these two developments, advanced nano and AGI. This is why a lot of this thinking looks like handwaving to skeptics on the outside. Seidensticker is one of those skeptics. He'd probably tell us to ignore the two miracles for a moment and understand how science and technology really work.
Seidensticker doesn't really explore nano or AGI but in looking in the directions he does, I think he does us a service by pointing out the handwaving that's going on. He saying, in effect, "Let's make certain we understand how the current state of the art really works before we talk about leaping into future. We have to get to there from here and if we don't where we actually are we can't get anywhere."
There are many more scientists and engineers now then there have ever been and this number is growing as developing countries join the fray. Patent offices and professional publications can barely keep up. (Although I think it's disingenous to use the rough quantative measure of number of patents granted as measure of progress. We grant a lot of stupid patents now. I'm sorry Amazon's "One Click Purchase" doesn't count as a civilization changing advance! Seidensticker talks about this. More later.) The point is how come this doesn't seem to be cascading for us?
AggressiveProgressive:If it was pumping out awesome designs for new technology all the time, it would ultimately have to be humans implementing them until such time as the AGI can create multitudes of highly functional robots.
Right. And the there is all this old, yet vital, infrastructure we've got to replace. Tunneling technology has steadily advanced but it still costs the Big Dig billions to uproot Boston to put a viaduct in. Robots both giant and microscopic could do this better for us but this takes us back to the nano/robotics miracle.
Not saying it's impossible, I'm just saying it's damn tricky.
AggressiveProgressive:I just had one thought that might support the "Hard Takeoff" scenario. I suppose if the AGI were to pretty quickly create self-replicating nanotechnology that could be used as molecular assemblers, it could build whatever manifestations in the real world that it requires. Although I am guessing that even this would require the aid of humans.
Or if nano helps us rapidly advance neurology so as to reverse engineer vertabrate brains thus leading to rapid advances in AGI. One miracle enables the other.
But let's put those two utterly, utterly plastic technologies aside for the moment since they aren't here yet. Let's focus specifically on Seidenstickers stuff. Expect another, more specific, post tomorrow or thereabouts.
Like I say, I view Seidensticker's book as much needed sanity checking. This will be beneficial to us transhumans in the end even if shatters some simplifications.