Good points. I may have misunderstood the article, but I'm a little surprised the author didn't write about Russell's inability to accept Gödel's Incompletenes

Good points. I may have misunderstood the article, but I'm a little surprised the author didn't write about Russell's inability to accept Gödel's Incompleteness proof. This made mathematics not fit in the "[it] is such that it can be perfectly described by an appropriate set of precise philosophical concepts". So I guess, if he held that philosophical opinion about reality, it would be hard to accept it about math.