Philosophy describes rather than prescribing or explaining. contrast with Tractatus ← “Whereof we cannot speak, thereof we must remain silent” ← “Only when we have immediate contact does what we say have meaning”
An explanation gives new information and theory, which is why “picture theory of language” is so apt, as the picture theory gives an explanation of language.
Philosophy is a therapy; continuous from tractatus, he sees philosophy as the result of confusion(s).
The dichotomizing of philosophical solutions (rationalism vs. empiricism, relativism vs. realism) → Tractatus says “people speak of ethics and get confused because they misunderstand that language is a picture.” ← Investigations says “People get confused because they only have that singular narrow idea of language.”