BS”D
So you disagree with the GRA, that’s fine.
By definition, as a Chossid, I disagree very strongly with (though of course highly respect) the GR”A (and I am very aware that he was a mathematician of note). I also think you are twisting his words, but since I do not learn the GR”A’s Torah, I have no way of knowing whether my assumption is correct.
And even if this is correct, there is a severe problem of yeridas hadorois, as well as the format of college. I doubt the GR”A learned in a university which was at all like that of today.
While the Lubavitcher Rebbe certainly did study technical subjects in university, most of his knowledge of mathematics and all of his knowledge of languages were obtained prior to attending same, from tutors and independent learning here where he grew up. Guess where the Lubavitcher Rebbe learned languages using dictionaries and books (and where I acquired much of my ability to read Italian)…hint – you say a brocho after you leave there…