Is it fair or reasonable to examine all the societal and technological change that occurred during the 20th century, and project a roughly equivalent amount of change in this century? Would that be expecting too much change, or perhaps too little? How much power will modern, accelerating technologies possess by the year 2100, 92 years from now?
Today we are pleased to have a guest blog entry from Tihamer Toth-Fejel, a senior research engineer at General Dynamics Advanced Intelligence Systems, a science advisor to the Lifeboat Foundation, and a member of CRN's Global Task Force. He asks:
One of the points to remember is that Moore’s Law is exponential — or even faster, if Ray Kurzweil is correct. So it’s not really a question of what kind of technology did we have 92 years ago...we should ask about 920 years ago, or even 9200 years ago.
In other words, if Freitas, Merkle, and Moriarty succeed next year, all heck will break loose. Not immediately, of course, but diamond is a very useful engineering material. If we could use it to make cars and buildings, we would. Everything depends on availability and cost — and both depend on technology.
Four years from now, the Zyvex-led DARPA Tip-Based Nanofabrication project expects to be able to put down about ten million atoms per hour in atomically perfect nanostructures, though only in silicon (additional elements will undoubtedly follow; probably taking six months each). At a standard Moore’s Law exponential growth rate (doubling time of 18 months), this Patterned Atomic Layer Epitaxy (Zyvex’s approach) will only get us up to 23,058,430,092,136,939,520,000,000 atoms per hour by 2100 — a few hundred pounds worth.
This is the big kick: What happens when we use probe-based nanofabrication to build more probes?
It’s starting to happen now (see “Thermal Actuated Multi-Probes Cantilever Array for Scanning Probe Parallel Nano Writing System” by Watanabe, Isono, et al). Chad Mirkin, who also has another piece of the DARPA Tip-Based Nanofabrication project, has already used 55,000 dip pen nanolithography tips to make 1,600 100 nm dots in under 30 minutes. (Mirkin is using standard microphotolithography MEMS to make the dots; this is the most conservative approach to productive nanosystems. The others include Structural DNA — Rothemund, Nanorex, et. al — and Schafmeister’s Bis proteins, plus a few more not as promising.)
What happens when productive nanosystems get built, and are used to build better productive nanosystems? The exponential increase in atomically precise manufacturing capability will make Moore’s law look like it’s standing still.
As Tihamer suggests, we seem to be on the cusp of building nanoscale machines that can build other nanoscale machines. Following that "big kick," the only practical limits on how much power the technology can provide will be software design and human imagination.
la la la la.. ponding this for quite some time now.. how wonderfully timed this all might turn out to be, amongst global crisis's, peak oil (see below),arrival of advanced tech, we really might just be playing out a giant game of sim city!
IEA Chief Economist, Peak Oil by 2020.
http://tinyurl.com/6lp2ru
Also a little offtopic fyi's worth checking out mike...
Designing a human mind.
http://tinyurl.com/6bv5nj
Cybernetics lecture-Kevin Warwick
{note persist second half is good}
http://tinyurl.com/59q6ju
Posted by: Tristan Hambling | December 22, 2008 at 11:03 AM
Peak Oil is BS. Sorry. The US alone has more than enough oil (and possible reserves even higher) if we just were to DRILL for it.
First sign when something is a scam: When the scam artists keep missing their deadlines for 'deliverables'. Excuses are made, new 'observations' that 'wasn't available when I made the prediction' are 'discovered' and mentioned, etc., etc., etc.
And, when backed up against the ultimate wall, the scam artists resort to red herrings like redefining the spin: 'liberal' is now called 'progressive', 'global warming' is called 'climate change', 'raising taxes on the rich' becomes 'oh, the economic downturn makes that impossible', etc.
And the Peak Oil crowd has been just as guilty (both as individuals as well as collectively) of all of the above every bit as much as Steorn [http://en.wikipedia.org/wiki/Steorn] has.
So, I am not holding my breath. Not after spending a lot of overtime 'fixing' Y2K software bugs to avert a disaster that was never real.
Posted by: Zyndryl | December 22, 2008 at 04:19 PM