[yamazakiwi]

If you are talking about an adult I don't believe you lol

And if it is true... it is not a common experience and would have external factors contributing to this behavior.

Additionally, using IQ to qualify someone's intelligence is a signal, so I'll just not go into it deeper since we will disagree as I find your anecdote juvenile, straight up exaggeration, or a complete lie to serve your opinion.

Plausibly this could happen if you had the ego of a 16 year old or were socially disabled, and it would be alleviated over time through experience. I'm not trying to be rude but you sound like a Tiktok conspirator and I'm old enough and experienced enough to smell bullshit.

[dns_snek]

I didn't say it was common, I said it's possible because I've seen it with my own eyes. He's over 30, I've known him for over 15 years and we've occasionally collaborated on software projects.

I have a really good idea of his "abilities" and we've been in contact regularly all these years which is why I can pinpoint when this all started. I even talked to a few of our common friends about it because I'm worried about his well-being and they agreed that there's been a pretty dramatic shift in his abilities and demeanour.

> using IQ to qualify someone's intelligence is a signal

You're way off base. Believe me I know that IQ as such isn't a great way of measuring and especially comparing intelligence between cultures, but I was comparing him against himself.

In other words, he used to be really smart and had above-average critical thinking skills. Now he's seemingly incapable of critically engaging with new technical ideas or reason about their implications. He just refuses to engage with anything that is mentally demanding.

> I'm not trying to be rude [...] and I'm old enough

You should probably put more effort into the "trying not to" part. Your entire response is "straight up" a rude dismissal accusing me of being a "juvenile" "TikTok" liar at every step, "lol".