'...for Frege, several people may grasp the sense of one word or of one thought, and that just as the sense of a name denotes an object, the sense of a thought denotes a truth-value'-
In other words, Sense (Sinn or Acceptation) is the name Frege gives to the solution of a co-ordination problem which itself is described by the 'Reference' of the word or phrase or 'thought'- i.e. its context. If there is a canonical solution- then Sense corresponds to a 'truth value'. In other words, if you can be sure of finding the Schelling focal point without discussing it with anyone (i.e. gaming it) because there is an obvious, unique, quick to halt algorithm you can run- then you have a proposition in a first order language of a certain type.
'What is involved in grasping a sense?'
The answer, obviously, is a zero knowledge mimetics or cheap-talk Preference Falsification. But that's not Frege’s response which is- 'that senses are neither part of the world of spatio-temporal objects, nor do they exist inside the minds of individuals. They belong to a “third realm”, a timeless world, to which all of us have access.'
Access how? Well, d'uh, collaboratively like Borges's 'Orbis Tertius' project. The Tlon thus collectively created is, of course, a Psychologism- which from the Evolutionary p.o.v it's useful for us to cultivate, even in hyper-mentalist, hypo-mechanist, form. In this sense, so long as one is autistic enough to reject Psychologism as Teleology, there is no ontological scandal- anymore than there is a Christological scandal in Tertullian- in Frege's, surely Game theoretic, not hyper-mentalist at all, 'third realm'.
However Dummett, Frege's greatest English language commentator,' is far from endorsing the suggestion that thoughts occupy a third realm beyond time and space. He describes this doctrine as a piece of “ontological mythology”, the term “mythology” here being used in a purely pejorative sense (Dummett, 1993a, 25). Dummett thinks that these two loose ends should be tied together. Rather than being content to describe the act of understanding as involving a mysterious connection between our minds and timeless entities known as senses, we should focus on the practice of using sentences in a language. This, in turn requires us to think about the purpose of classifying sentences as true or false, and that requires that we think about the purposes for which we use a language (Dummett, 1981a, 413). The result of this process might be to vindicate Frege’s semantics, or it might vindicate the intuitionist position. Dummett’s most influential contribution to philosophy can be understood as an attempt to resolve this unfinished business.'
In other words, here again is that paranoid and programmatic- as opposed to sane for self-sublatingly schizophrenic- 'linguistic turn' which coincided with the de-Industrialization of Higher Education and the Great Credentialist Moderation now nakedly revealed as a Ponzi scheme rendering us all asymptotically Third World.
Why? Coz everybody needing a PhD in order to understand that, like, Language speaks them- is only par for the course for discoordination game Elitism or Chauvinism but fucked for the true purpose of Higher Education-as-Paideia which is Universal and Transcendental and consists entirely of telling kids not to masturbate so much otherwise they'll go blind as opposed to just getting more and more myopic. Mind it kindly. Aiyayo.
Envoi- Prince! Since by hic sunt leones the State's burgeoning is naturaliter permitted Ex ungue leonem, our I & Thou, is now to a Third Estate demitted.