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"Griffiths, Jay"
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Her dark materials
Betrayal, miscarriage, abortion, childlessness, a crippling road accident: Frida Kahlo transformed her suffering into works of hope and defiance. Jay Griffiths examines how this extraordinary artist inspired her new novel \"A Love Letter from a Stray Moon\". (Quotes from original text)
Journal Article
Symmetric Rendezvous With Advice: How to Rendezvous in a Disk
In the classic Symmetric Rendezvous problem on a Line (SRL), two robots at known distance 2 but unknown direction execute the same randomized algorithm trying to minimize the expected rendezvous time. A long standing conjecture is that the best possible rendezvous time is 4.25 with known upper and lower bounds being very close to that value. We introduce and study a geometric variation of SRL that we call Symmetric Rendezvous in a Disk (SRD) where two robots at distance 2 have a common reference point at distance \\(\\rho\\). We show that even when \\(\\rho\\) is not too small, the two robots can meet in expected time that is less than \\(4.25\\). Part of our contribution is that we demonstrate how to adjust known, even simple and provably non-optimal, algorithms for SRL, effectively improving their performance in the presence of a reference point. Special to our algorithms for SRD is that, unlike in SRL, for every fixed \\(\\rho\\) the worst case distance traveled, i.e. energy that is used, in our algorithms is finite. In particular, we show that the energy of our algorithms is \\(O\\left(\\rho^2\\right)\\), while we also explore time-energy tradeoffs, concluding that one may be efficient both with respect to time and energy, with only a minor compromise on the optimal termination time.
Paper
Living time
In the modern Euro-American culture, time is a dead thing, a disembodied ghost no longer embodied in nature; the moment struck dumb by the striking clock, the deadening character of routines, schedules and endlessly counted and accounted time. By contrast, in most cultures, for most of history, time has one supremely different quality; time is alive. And is lived as such. The Euro-American image of time is a machine, a factory assembly line chucking out identical hours, each unremarked and indistinguishable. In The Silent Language, anthropologist Edward T. Hall examined the way time is processed and structured by different cultural groups. Hall divided time into two categories: monochronic and polychronic. Monochronic time, like money, can be saved or spent, whereas polychronic time is more flexible, characterised by several activities taking place at once. The model of time favoured by a culture or individual has wide-ranging effects: for instance, on consumer preferences.
Book Chapter
I felt like an amiable sheep, straitjacketed on the inside
\"Because this condition is a bittersweet privilege, a paradox of insight and madness [...] there is honey on the razor's edge.\"
Newspaper Article
G2: Her dark materials: Betrayal, miscarriage, abortion, childlessness, a crippling road accident: Frida Kahlo transformed her suffering into works of hope and defiance. Jay Griffiths on how this extraordinary artist inspired her new novel
'I can't get over this hangover,\" a tequila-drinking parrot squawked in the courtyard. The household seethed with monkeys, tiny Itzcuintli dogs, an osprey, tame doves and a pet fawn: companions and perhaps child-substitutes for their artist-owner Frida Kahlo. Lemons, watermelons and flowers filled the house, and an organ cactus scraped the sky. Near so much life, death jangled a different music: she kept a foetus which a doctor had sent her as a gift in her bedroom, as a Mexican-style memento mori; a cardboard skeleton wore Frida's clothes; and the bed's canopy had a huge mirror so that, when bedridden, she could paint herself, a still life, a stilled life. \"I suffered two grave accidents in my life,\" she was to write. One was the tram. \"The other accident is Diego.\" She and the Mexican muralist Diego Rivera first met when she was 15, and a student at a college where Diego was commissioned to paint a mural. So badly behaved were Frida and her gang that the previous muralists had armed themselves with pistols to deal with the kids. After meeting again in 1928, they married the following year, and she yearned for a child with him. Although she became pregnant several times, she had two terminations for medical reasons and one miscarriage. Her pelvis, it seems, had been too badly damaged to support a baby. Her painting Henry Ford Hospital depicts the artist, naked and alone on blood-soaked sheets, surrounded by a barren landscape that echoes her own barrenness. \"Never before,\" said Diego, \"has a woman put such agonized poetry on canvas.\"
Newspaper Article