This is a particularly superb point! I really like this argument.
Furthermore, even after deciding on a vague sort of metric, it's hard to quantize (choose a measure, in math jargon), advancement to be able to have rates.
Wow, it's amazing how different our views of the world are. IMHO the rate of advancement is now far, far, far surpassing any other time in the known history. The PC (1975), Web(1991), FB(2004), iPhone(2007) have created such an enormous change so fast. Have a look at "How to Create a Mind: The Secret of Human Thought" by Ray Kurzweil to see how crucial sciences nowadays are advancing by the month.
Besides the communication revolution as a product of the internet, and the ability to create images and sounds much more effectively using those devices, the average persons life has not changed much.
We have changed in some ways though due to that communication revolution - it has had profound effects on workforce distribution (labor jobs, if any chance exists, are simply deposited where the labor market is cheapest while stable enough not to have large overhead from unstable nations), wealth in the USA has been dramatically concentrated in the richest 0.1% as a result of that globalization due to computerized communication, we are much more involved as a species with each other, etc.
And communication improvements are great. But they are a tiny aspect of life, and they are about the only thing getting noticeably better. A lot of that is due to copyright, patents, and draconian laws holding back self driving cars, stem cell grown replacement limbs, 3d printers in the home, thorium power, and a bunch of other just-out-of-arms-reach revolutions in the way we live our lives outside of that audio / visual space computers vastly improved.
Arguably, this matters mostly to those below a certain threshold income (difference of 2% and 10% not as big as 10% and 50%), i.e. matters more to the poor than to the rich. I think American citizens tend to be richer than the rest of the world.
In any case, I don't see the point in making a big debate over this on a post that's about porting C&C to HTML5. I think it's enough to point out that when there are protracted debates, it's because the issues involved are much more complicated than just a conspiratorial power-grab.
The pharma industry is a very good example of this...the costs of drugs and the tricks pharma companies use to extend patents is rightly criticized...on the other hand, the research and regulatory process is massively lengthy and costly, and one that no one would pursue if another company could swoop in and profit on billions of R&D.
There's also something else...rate of advancement is likely going to seem slower than it was in the past few centuries, because of a natural diminishing rate of return. To paraphrase -- I think, Stephen Colbert -- it's easy to make scientific discoveries when not burying diseased corpses next to your water supply is considered a health breakthrough.