That's true, and it's also the reason why it's so important to ensure your information diet is of high quality. Any concept (especially harmful or radical ones) can be reinforced.

I had to learn this lesson a long while ago when I realized many sites I casually browsed were injecting and repeating many dark thoughts that weren't truly reflective of reality. I've been way more careful of my daily intake and the groups I associate with ever since.

Can relate. Also information diet changed for me over time, as what is "high quality" is subjective based on where I am.

In 2016 I used to browse free webinar. In 2021 youtube self-help videos. Now-a-days only focused on history books as already learned everything needed for self-help.

And most often we focus on what we don't know. In my exp I wasted most time rereading stuffs I already knew.