The point I was trying to make was that if the ratio is directly proportional, in a linear progression, as you keep insisting, then you have provided for the possibility of
increase in speed of 100%:10% faster construction
increase in speed of 200%:20% faster construction
increase in speed of 300%:30% faster construction...
which is clearly impossible because the result would be
increase in speed of 800%:80% faster construction
increase in speed of 900%:95% faster construction
increase in speed of 1000%:100% faster construction...
which as we have previously determined is a ZERO build time AND you have the possibility of NEGATIVE build times....
there for the ratio cannot be "merely" an inverse proportion... one of your terms MUST be a geometric progression of some sort....
either the % faster construction must grow towards...
99%;99.9%;99.99%;99.999%
or the increase in speed must grow towards ∞
100%;200%;400%;800%
which, as I have been hinting towards, is a inverse geometric proportion...its a subtle but distinct and very important difference, particularly since you KEEP insisting that the relationship MUST be inverse.

