Please note that this content has been subsumed into the originating article: The Truth about Truth.
This is a response to this comment by Landzek from The Philosophical Hack regarding the notion of intended truth in communication, the fourth amendment in a series of posts extending the concept commenced in The Truth about Truth.
Extending the simple asymptotic function from the first amend, we might see (in Graph 4a) a slight variation in interpretation due to the insufficiencies of language—providing us with a close enough for the government approximation to some shared perception. People in this group will tend to agree on some perception, say, that the earth is spherical.* The average distance from perception to reality is the same for all in-group members, give or take some small variance that I’ll dismiss as an insignificant rounding error.
Graph 4b, however, illustrates two opposing perceptions of reality. In this example, I show proponents of orthodoxy (group O), who claim the earth to be roughly spherical, arbitrarily closer to reality than proponents of an alternative theory (group A), who claim that the earth is flat.
Each in-group has some variance from the mean notion, but ex-group members are orders of magnitude apart, as measured by the blue and red bars to the right of the chart. If we assume some binary condition that the earth is either spherical or flat with no other options, one of these might be considered to be right whilst the other would be wrong. We can establish this situation relative to the ex-groups, but, still, neither of these is comparable to Reality™ .
Graph 4b: Correspondence of Truth to Reality (Simplified ex-group concurrence)
The intent of each group may be to promote the perspective of the group—each claiming to be closer to the truth than the other. It is easy to imagine a situation where both claimants are equally distant from the truth:
Imagine two groups, each making opposing claims:
- Tarot is superior to Astrology in predicting the future.
- Astrology is superior to Tarot in predicting the future.
I’ll go out on a limb here and create a reality where the future is not predictable by either measure, irrespective of what each in-group believes.
* I understand that the earth being an oblate spheroid is primarily an analytical distinction, so is tautologically true, but I am using a simplification of a commonly accepted fact.
Philosophics 