Originally Posted by
Andy Bettencourt
How do you filter 'slow' B cars into C without obsoleting the C cars?
You don't. Read again what I wrote:
By creating a system of fixed performance brackets/goalposts we have guaranteed that as modern cars' relative performance increases, we - by design - obsolete both classes and cars rather than just cars.
The difference is that while you can't affect the performance value of the individual older cars, you could keep the ITC moniker alive by filtering the cars down. You've (plural) chosen not to.
You (plural) have chosen - explicitly or purely by chance - that you'd rather manage cars' relative performance within a fixed performance bracket envelope of classes rather than actively managing the cars' fixed relative performance within a floating system of classes. In other words, you'd prefer to manage the absolute performance of classes rather than the relative performance of cars.
I'm not saying there's anything wrong with this; in fact I understand how it would much easier on you (plural) and creates a general standardized benchmark for all. However, you should recognize that you may have - again, either explicitly or by unintended consequences - actively obsoleted classes (starting with ITC) within those performance brackets. This is not a function of "death from within" but rather a result of your (plural) choices of design.
In the end, should ITC "die" you're back where you started, with four classes, and a system designed to actively obsolete slower cars as the performance envelope of new cars increases. Eventually, you will be forced to create more classes up top to accommodate this increased performance envelope, and as the slower cars decrease in availability and interest you are implicitly deleting those classes.
GA
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