Lyrics should not need to stand on their own; many of [Bob] Dylan's do, but in common with other great lyricists, he has written plenty that falters on the page but soars in song.

All doctrine is ultimately the death of joy - even when the doctrine is the elevation of the light above the serious, because joy is too varied and elusive ever to confine itself to one or the other.

There's no reason - not yet, anyway - to believe [Bob] Dylan himself endorses such an attitude; or that he would think of himself as a more profound and worthy recipient than, for instance, any of the brilliant Motown or girl-group lyricists who are more likely to be awarded a Nobel prize for chemistry than for literature. Whether there is more truth and humanity in his best lyrics than in Abba's, or less, is unquantifiable, and it would be meretricious to attempt such a calculation in contesting an argument he has been dragged into.

The question now becomes about defining your terms. What is literature? Unless we allow it to encompass the oral tradition from which it grew, which means taking it back to Homer and beyond, it demands the written word - poetry and prose. [Bob] Dylan is no slouch at the written word, both in its own right, and transcribed from his lyrics, which have often been acclaimed as poetry and may well stand up as such. But that is not his métier.

[I have] my own view about [Bob] Dylan's Nobel prize. Which is, I'm firmly in the Nay camp. I do think the award is a category error, but that's not why. Not in itself. What bothers me is the perceived status of the categories. If pop lyricists were routinely considered for the prize as are authors and poets, I'd still think it mistaken, but I wouldn't much care. But I am quite certain that Joni Mitchell and Leonard Cohen, for example, both at the very least Dylan's equals as writers, have never been in the running and never will be.

Pop music, across its countless iterations, is a vast, amazing, thrilling art form. All life is in it. It stands for itself. The same is true of literature, but nobody feels compelled to toss Philip Roth a grammy just to prove it.

Bob Dylan, Nobel laureate. A new fact so shocking that even the year's most notable deaths have not outdone it for the volume (in both senses) of instant reaction; so divisive, it makes Brexit, the Labour leadership and the US Presidential election seem lesser ruptures.