Summary: Myers-Briggs is a useful model, when a few adjustments are made.

1. Problems I've Discovered

1a. Myers-Briggs pigeon-holes people into one "personality type", and generalizes what they should think and do based on that. I think that's kind of silly and limiting.

1b. If you read the personality descriptions, it is favorable towards the "rare" types, describing them as brilliant geniuses, while the other types are portrayed as barely sentient worker drones. I think that's really condescending and divisive.

2. Adjustments I've Made

Nevertheless, I think the questions and the other text is a USEFUL tool for SELF-ASSESSMENT and also for UNDERSTANDING others, so I don't want to throw the baby out with the bathwater.

Here is how I make Myers-Briggs make sense and fit into my other mental models:

2a. First, instead of four scales, I consider it an EIGHT-SCALE system, with each trait being its own measure. For example, you can be high on the introversion scale (needs alone time to recharge) and at the same time also be high on the extraversion scale (connects with others readily, needs socializing to thrive.) I think the worldwide quarantine made this obvious to many an self-described introvert.

This applies to all the other scales as well. You can be someone with intense feelings and at the same time a thorough and dedicated thinker, who sits down and combs their mental models for hours. You can be very good at listening to your intuition while also being highly perceptive to your senses. And you can have firm general rules about how things "should be", especially as one gets older, while still remaining to new possibilities.

2b. The other adjustment I have made is that I consider each scale to be a measure of how much ABILITY a person has developed and PRACTICING that trait. In other words, beyond natural predisposition, each person can grow considerably in any of these traits, provided they practice and apply it regularly.

Conclusion: People are neither introverts, nor extraverts, but both. People are both thinkers and feelers, both judgers and perceivers, and both intuiters and sensers.