How much would an iPhone have cost in 1991?
techpolicydaily.com
techpolicydaily.com
"But the fact that so many were so impressed by an assertion that an iPhone possesses the capabilities of $3,000 worth of 1991 electronics products – when the actual figure exceeds $3 million – reveals how fundamentally difficult it is to think in exponential terms."
Is nonsense. The point of a general-purpose computer is that it's general purpose. But people aren't buying an iPhone to get a general-purpose computer, they're buying one to get something that does things. The comparison to 1991 gadgets is in terms of thing-doing, not MIPS and storage and whatnot. The comparison of raw compute power is interesting, but it doesn't invalidate the other kind of comparison.
That was my reaction as well. In 1800 you only needed 1 or two horses to pull a cart to get you from point A to point B. A typical car today might have 200 horsepower, but you don't actually compare that to having 200 actual horses in 1800.
(in other news, Google seems to have definitions for various animals' speeds. Neat!)
This would have been an interesting article except it loses credibility by pretending the two questions are the same, when they are not.
Even that isn't really what it asks. If you wanted the raw storage capacity of an iPhone in 1991, you wouldn't buy 32GB of flash memory. You'd buy hard disks. 32GB of flash in 1991 would have been slow and poorly suited to the job.
Speaking of hard drives, a GB of storage was not $10K in 1991. It ranged from $4.25K to 2.79K during that year. http://www.jcmit.com/diskprice.htm You'd have to go back to 1988 to hit the $10K/GB price.
The BLS (which is responsible for the official CPI) has a recent overview on possibilities of error and related considerations: http://www.bls.gov/opub/btn/volume-1/consumer-price-index-da... Their conclusion: "Measurement of price change in a large economy is sufficiently complex that the accuracy of an estimate is difficult to gauge and is likely to be debated. The CPI cannot claim to be a completely precise measure of inflation and publishes the variance of its estimates. Several potential sources of bias have been identified in the CPI and addressed, though there continues to be debate over to what extent and in what direction bias may still exist and the ways in which BLS can continue to increase accuracy."
Finding out that this article was written by the American Enterprise Institute made me feel dirty until I reflected on the fact that nothing in the article appears to be grossly incorrect, and discarding an interesting article for some possibly bad political implications seems like a bad way to live one's life.
Another thing that no-one has yet pointed out is that even this article's calculation could still probably be extremely low if the cost of developing iOS and the related apps are included.
How much of a decrease to baseline CPI would constitute a "gutting"? It's not as if the current formula is engraved on stone tablets from the gods: Like any estimate, it could probably be improved over time, up and down.
Anyway, if AEI has a motive in writing pieces like this, I think it's more to emphasize how incredible technological advancement has improved our buying power and consequently our lives. I run into a surprising number of folks on forums like this who are convinced that they'd much rather live in the golden "Mad Men" years of the 1960's, when you (a man) could raise a (typically white) family on one blue collar income, which came with a house, car, a wife with time to raise the kids, and a golden retirement in Key West. It's easy to lose track of just how much everyday "magic" you'd be giving up, even if you're not some poor minority who'd be really screwed trying to earn a living back then.
Inflation isn't the same in every sector, so inflation adjustments should also be targeted to the problem they are trying to offset. This is why what you measure for inflation is so important. To address the differences in what different population segments purchase, the BLS has come out with different consumer-price-indexes that weigh different categories of goods differently: http://www.bls.gov/news.release/cpi.br12396.a06.htm
I challenge anyone to imagine what a disadvantaged life they would have without cheap, ubiquitous computing ability and connectivity.
3,560,000 * 0.5 ^ 12 ≈ 869.143,560,000 * 2 ^ -12 ≈ 869.14
Based on: 1/2 ^ 12 = 2 ^ -12
Yes, I've noticed that in other contexts. It's too bad because it makes the representation less clear, more complex than necessary. I first became aware of this when I tried to say that gravitational force declines as r^-2, to numerous protests.
Oh, well -- a tempest in a teapot, as they say.
The effect of Moore's "law" is that processing power doubles approximately every 2 years, while the cost halves.
If 1 "unit" of processing currently costs $1; in 2 years time, 2 units will cost $1. Or that 1 unit costs 0.50.
What's the latest year that my backpack be a Top 500 Supercomputing center.
The results can be pretty entertaining sometimes.
If you have some cash burning a hole in your pocket, you can piece together a ~10 TFLOP machine today entirely from NewEgg without doing anything too fancy.
Technology is funny.
For comparision, the GTX Titan can do about 1.5 TFLOPS in double-precision and about 3.2 TFLOPS in single-precision doing GEMM.
I play the same game, and I love it (no one ever believes me about it, either).
It's a product of the technology available at its time.
An equivalent excluding media, rather. A few copies of peanut butter jelly time would fill up a functionally equivalent iPhone's disk.
edit: MIDI Peanut Butter Jelly Time?
If someone built a few of them using today's knowledge, it would be expensive. Very expensive.
Only at scale are they cheap. They are only at scale if everyone is buying them. The same process that would cause the scale in components might cause the change in commodity prices.
So your point is hard to understand...
Likewise, the infrastructure for building iPhone components didn't exist in 1991. The A7 is built on a 28nm process. The 486 in 1991 was shipping with (I believe) a 0.8 micrometer process. So the infrastructure of the time was three orders of magnitude away from being able to build this chip. And this says nothing of the other components which faced similar technological hurdles. You couldn't make all these hurdles go away. Building up major infrastructure takes time, and no amount of knowledge can reduce that time to zero.
As shown in this story by the simple example of a pencil, the ability to produce products of the type we have now at the expense we have now might as well require it to be 2014, not 1991.
So $3 million is understating. They couldn't have built anything close to today's smartphone even with $3 billion with B.
Without going into any analyses or details, travelling to the moon should be much cheaper and faster (yes I am aware of low-cost orbital space flights -- and even paying it with bitcoin! --, but it still isn't travelling to the moon).