The Problem with Socionics

[Kristiina]

I am not sure to what extent if any, socionics can decide what people are good at.

No one claimed this.

That is not true. If it was not explicitly said then certainly it was said implicitly. I think you should re-read some of what Kristiina wrote.

When choosing a career, a person should know at least their PoLR. And there might be different methods to do the same thing, but there are still limits. I would not like to meet a calculatingly cold and methodical (expressionless and dry) psychiatrist. There are many different methods, but some methods are more suitable for some tasks.