"so far" or "yet"

[inbochum]

Hello ,

is there any difference in tone between the uses of yet and so far?

As in: "I haven't received any messages so far/yet."

[Charlie Bernstein]

Hello ,

is there any difference in tone between the uses of yet and so far?

As in: "I haven't received any messages so far/yet."

In your example, they mean the same thing.

Sometimes yet can mean but or however:

-I haven't received any messages so far, yet I'm certain one is coming.

And it shows up in the idiom yet again, which, like once again, implies repeated attempts:

-I checked for messages yet again.

And finally, there's the yet that expresses an expectation of completion (the opposite of already, the expectation of incompletion):

-Are we there yet?
-Are you done yet?

Yes. We're there and we're done.