I always assumed a dichotomy between f0 and pitch, such that the former is objective/physical whilst the latter is subjective/mental.
Then, I was introduced to this presentation and article.
According to the claims made on the 2nd slide of the presentation, my assumption about pitch and f0 isn't exactly true.
I can imagine that one could claim that a particular calculation of f0 (like that done in Praat, for ex) isn't objective (because it results in octave jump), but the existence of f0 itself is difficult for me to challenge. Can someone explain to me in what respect f0 isn't objective?