Could a stand-up routine ever rise to the level of “art” — the kind of performance that rewards multiple viewings, whose humour grows and deepens, which contains subtleties waiting to be discovered? A sketch certainly can. Just think of Abbott and Costello’s “Who’s on First?” from 1944, or the trial of Ravelli in the Marx Brothers’ Duck Soup from 1933, or Peter Cook and Dudley Moore’s “One Leg Too Few” from 1964. With each new viewing, the comedic timing, the precision and cleverness of the puns, the exaggerated physicality, the sheer virtuosity of the writing cannot help but surprise and delight all over again.

But with most stand-up, the humour arises from a certain immediacy: the interaction between the material and the peculiarity of the times in which it is delivered, and between the comedian and the physical audience. The frisson that arises from that interaction, the shock or surprise the comedian is able to elicit, is hard to re-experience to the same degree.

It stands to reason, then, that if a stand-up act was to endure as a piece of comedic art, it would most likely be performed by a comedian who cut his teeth while working as a sketch writer for a show like Saturday Night Live.

Enter John Mulaney. There is something undeniably enduring, timeless even, about his Netflix special “Kid Gorgeous at Radio City”. It was recorded in 2017 — in the aftermath of Trump’s first election to the US presidency, when public bewilderment was still offset somewhat by the belief it wouldn’t last long — and won an Emmy for Outstanding Writing for a Variety Special in 2018.

Mulaney’s act exhibits a strange sort of genius, though. It is obviously a piece of writing. Indeed, he explicitly references the act of comedic writing throughout the routine.

Mulaney is also assiduously non-political — right up until the moment that he isn’t. It begins with a nostalgic nod: “I just like old-fashioned things. I was in Connecticut recently, doing white people stuff …” He makes reference to the oddity of coming across a gazebo that was “built by the town in 1863”: “Building a gazebo during the Civil War, that’d be like doing stand-up comedy now.”

And then he embarks on a metaphor for the Trump presidency that has been hailed by many as genius: “Here’s how I try to look at it, and this is just me, this guy being the president, it’s like there’s a horse loose in a hospital …”

The aesthetic connection between Donald Trump’s golden coiff and a horse’s mane is, of course, immediately pleasing. As is the invocation of something heedless thundering through a finely tuned environment. There’s the added benefit that Trump’s name is not mentioned once, and yet the entire simile works. The question is … why?