Archive for Kourou

Nature tidbits [15 Jan 2026]

Posted in Books, pictures, Travel, University life with tags , , , , , , , , , , , , , , , on March 13, 2026 by xi'an

The cover of the 15 Jan issue of Nature is a blurry reconstitution of snapshots from the James Webb Space Telescope, which contributed to uncover these new astronomical objects, deemed to be young supermassive black holes. A notion I only came across recently, during a pre-defence lunch near the Paris Observatory.

Apart from that astronomical advance, Nature puts its focus on the 25th anniversary of Wikipedia. With a tribune bemoaning the insufficient investment of academics in the platform (with mentions of hypocrisy and betrayal). Which sounds rather unfair, since it requires an additional levy on research time, even though I did contribute to a few entries. And recognise the worth of most scientifics pages, as well as the parasitism by LLMs. And an interview of of Jimmy Wales’ about his Wikipedia memoir, Seven Rules of Trust. Kudos to his vision! He sounds rather optimistic about the chances of Wikipedia surviving the tsunAImi, but only if the users keep resorting (and indeed contributing) to the platform rather than accepting the LLM production at fa(r)ce value!

Other entries on

  • LLMs suffering (!) from “anxiety, trauma, shame and post-traumatic stress disorder”, although the arXiv reporting the experiment is criticized by others for anthropomorphising the machines. The danger is more in them inducing real trauma in vulnerable (human) users!
  • LLMs exhibiting aggressive behaviour (if trained accordingly)
  • the oldest evidence on human controlled fires using pyrite (in SE England), 400,000 years ago
  • the rise of academics being harassed (and not only in the US) and six recommendations for protecting our digital security (mentioning organisations such as Scholars at Risk Europe, Expert Voices Together, and Faculty First Responders)
  • a “Where I work” picture of a food scientist at the National Autonomous University of Mexico flipping a tortilla, with fermented ingredients to improve health and combat malnutrition in poor communities

Guiana impressions [#2]

Posted in Kids, Mountains, pictures, Running, Travel with tags , , , , , , , , , , , , , , , , , , , on January 24, 2022 by xi'an

As in other oversea French territories, Guiana is a mix of reproduction of some metropolitan features (e.g., the postoffice, the gendarmerie, the signage, the large malls with French brands like Carrefour and the same products as here, the many boulangeries) and of local specificities or idiosyncrasies (e.g., very well maintained roadsides, haphazard garbage collection, convenience stores overwhelmingly operated by people of Chinese descent, hardly any regulation on guns, hunting, or bushmeat for non-protected species). Car wrecks are left along the roads, while the driving code there reminded me of the 80’s! Meaning risky overtakes, moppets with no lights and moppet drivers with no helmet. I also drove there possibly the worst ride of my life, over the 50km between Roura and the harbour on Kaw marshes, as the formally (or formerly?) paved D6 road is littered with potholes that are rarely avoidable and often quite deep. The drive back in the night, the rain and the fog was a nightmare!

We visited the launching site of ESA, Kourou, an impressive structure over a huge territory. But missed the James Webb launch by six hours, only catching the exhaust fumes of the rocket when we were approaching Cayenne (after a rather uncomfortable flight between a massive and man-spreading left neighbour and a reclining-to-the-max front neighbour). And missed a jaguar crossing the road by being in the “wrong” ESA bus! (Unless this is a usual line of the tour guide.)

As Amazon France does not truly work in French Amazonia (another idiosyncrasy!), for obvious cost and delay resaons, bookstores in cities like Cayenne and Kourou are terrific and hopefully standing a better chance of surviving. When we spent an hour in La Case à Bulles, the place was crowded! (As I forgot my regular Olympus camera at home, I would have loved to get Amazon delivery. Instead I bought a basic Kodak camera from the local supermarket, which returned most of these blah pictures before the batteries prematurely died.)