You can solve fake news by having public and subscribed block/white lists, if twitter ends up decentralized.
You need to put tools to the people to make sure they are in control of what they consume.
We already do that now by choosing which newspaper to buy.
Kids are learning so much from Youtube.
For instance, @naval's cousin is going to school to watch a teacher in person, then going home and searching on @khanacademy to properly learn the subject after.
That is their method for successful learning.
Every formal system like science and math, ultimately rests on belief.
Down at the quantum level, it's not certainty, it's probability.
Even if we are in a simulation, there might be no way to find that out for sure.
Living things are biased from this effect, because we are biological and we keep a border around ourselves.
We try to keep optimal conditions inside our border to the detriment of everything else outside our border.
Society is optimizing for different things, that are different from the biological self of the individual.
That's an advantage of humans, since we can solve complex problems in the future, by predicting and sacrificing the present.
There is a difference between responsibility and risk management.
If you are wearing a MAGA hat, and someone attacks you, of course the fault lies with the attacker.
But it is true that that wouldn't have happened without the hat.