Sam Kinchin-Smith

Time-specific art extends the principles of site-specificity into the fourth dimension, by integrating circadian rhythms or extreme duration, say, into its performance language, or by staging a work to coincide precisely with when it’s set. There seems to be a lot of it about, at the moment, perhaps because it offers a live corrective to the always on, ever present homogeneity of digital culture. ‘The ephemerality and transitory nature is its power,’ as Séan Doran puts it. ‘You either got to it or you didn’t.’ Doran is the creative director of Arts Over Borders, who have just announced two new programming strands.

Mnemonic (at the National Theatre until 10 August) isn’t really a play about memory, or memory aids or triggers, though it’s quite insistent that it is. And its main narrative threads do function a little like memories, in that they assemble coherent stories from fragmentary records and resonant objects.

The coincidence of the centenary of Kafka’s death, on 3 June, and the publication of the first complete, uncensored English translation of his diaries a month before, is less straightforward than it seems. There are more obvious texts through which to tell the story of his last days.

The chance meetings, narrow escapes and spooky coincidences that fill Shakespeare’s romances are also a feature of the histories and provenances of the 235 surviving copies of the First Folio.

The bay of Elefsina, the modern name for ancient Eleusis, is a graveyard for ships named after gods and nymphs.