Consumption of junk information 24X7 actually damage brain than making us any smarter. Also, most people nowadays are sure of their own belief without trying argue the opposite equally well!
These people become canon fodder of propaganda machines.
Not everything we learn is good for our brain. Junk foods are eatables, but they do not make us healthy. Similarly, a lot of the information that we come across everyday doesn’t actually make us smarter. If the data we gather are faulty, our reasoning based on that data will be faulty too, and so will be our actions based on that reasoning.
How to avoid junk learning:
- Recognize human capital often depreciates; invest in knowledge that increases in value.
- Avoid overconfidence.
- Avoid confirmation bias.
- Avoid trusting the wrong ideas and false experts.
- Learn across disciplines.