Information technologies are the exception to many diminishing returns rules. This has several implications.<p>Non-informational technologies often don&#x27;t see such trends. Where they do they often manifest network effects (telephony, railroads, autos and fuel&#x2F;road&#x2F;repair infrastructure), or ...<p>Nominally non-information goods with very high informational content benefit from Moore&#x27;s Law growth. This can include very high tech manufacturing or control systems (aircraft engines), R&amp;D and process control (pharmaceuticals), an similar goods.<p>Even within high-eech and information goods, where the rubber meets the road, improvements are limited and the Jevons law limits overall efficiencies. Healthcare spending has exploded over the 20th century. Life expectency gains have been modest. Aircraft and ship speeds are lower today than 40 years ago. Greater data access runs into limits of human attention, and the fact that there are only 1,440 minutes in a day. An iPhone is in some regards amazing. In others it merely replaces pen and paper, books, radio, and live performances of entertainment.<p>I suspect tech impacts may be greatly overstated.