notes-characteristicsOfSomeFieldsOfStudy

See also website-ideas-science-puritySpectrumAndHandsDirtySpectrum .

Why things are difficult

Many parts of most fields of research are difficult because there is competitive pressure to go as far, as fast as possible, and it's mostly smart, motivated people working on this stuff, so at equilibrium all that would be left is stuff that is difficult to challenge these people. But there are different reasons why understanding something could be challenging, and so different fields of study have different sorts of 'bottlenecks' that make them hard.

I imagine that philosophy might be the most difficult of all, because the difficulties i describe for it above seem the most insurmountable. But i haven't done much philosophy, so maybe i'm wrong.