§169

It seems that if you (i) read a sentence and then (ii) look at a sequence of squiggles and utter a sentence, that in the first case you feel your utterance was connected with seeing the signs whereas in the second you don't. Is the connection a causal one?

It seems not, given that causation is established by experiments/observations where one thing regularly follows another. How can I feel something which is found out by experiment (i.e. your utterance's connection to the signs)?

Is the connection one of justification? - You could justify what you utter by reference to what is written but it makes no sense to say that I felt the justification.