It's bad to be absolutist about pretty much anything in my opinion.
if so what are the possible pitfalls people may occur up on?
The biggest pitfall is to forget that it's true.
It is generally speaking, horseshit to observe that we all have different ideas and feelings.
There's your religion: accepting difference as real, respectable and valued.
Undifferentiated difference, ironically, tends each person to think that if only everyone else would just do like I do, then they'd be okay. So if you forget that the Jung crap is true, you forget that genuinely and meaningfully different needs exist.
some people follow it just as strong as the bible to map lives and make decisions, is this wise? what are the possible pitfalls that people may occur up on following it?
some people follow it just as strong as the bible to map lives and make decisions, is this wise? what are the possible pitfalls that people may occur up on following it?
It's unfalsifiable. But it can offer plausible results.
You can't accept those differences before you observe them.
What does undifferented difference mean?
You can perceive people as either similar or different. But even slightly different is different.
Whether you perceive these differences as meaningful or not does necessarily follow from the fact that you perceive them in the first place. The first means perception, the second means judgment.
The model may be wrong. Daily experience that appears to corroborate the model may be confirmation bias. Everything could be different.