You seem unwilling to concede a point when you know you're wrong.
Well that wasn't accusatory at all ;P
Technically we are both right, we just both disagree with each other
OED defines 'scale' as:
"2[in singular] The relative size or extent of something:" My definition, relative size corresponds to an amount increase.
AND
"1.2 A series of marks at regular intervals in a line used in measuring something:" Your definition, age is a mark at a regular interval used to measure progress.
We are both right
So now the reasons to prefer my definition:
1. Gbs are independent of age, you can get them at any time, as such, staying in one age the only way you are going to increase output value is with fps. Hence, you can improve output value irrespective of age.
2. Well it is definitely true that as you age up those goods become more valuable, that is an example of the goods themselves scaling in value, and if everyone was at the end of tech there would be no real value whatsoever. The only reason higher aged goods have more value is because people assign arbitrary pricing on those goods to get them.
So look at it this way: the definition you use is akin to a definition of a ruler, my argument is that this ruler is totally relative and because of that, totally unable to measure things.
In the real world, the length of every measurement of length is DEFINED. Here the value of higher aged goods can become worthless as soon as everyone achieves that age and is producing those goods. (thus undefined) Relative rules cannot hope to work because then no one knows the true value, by basing your argument on the relative aspect of the free market, the measurements are inherently UNDEFINED, and therefore unable to demonstrate real scaling.