I want to know the answer to the following question:
What is appearance a poor indication of?
All the background I'm provided with is that "These socioeconomic factors are also significant to the limits of racial lines, because a minority of pardos, or brown people, are likely to start declaring themselves white or black if socially upward, and being seen as relatively "whiter" as their perceived social status increases (much as in other regions of Latin America).". Is that enough to answer the question?
Answer: no