Archive for Navy

Doug’s scared…

Posted in Books, Kids, pictures with tags , , , , , , , , , , , , , on August 1, 2023 by xi'an

Following a link from a NYT editorial, I came upon a transcribed interview of Douglas Hofstadter on his fright about the current nature of AI and in particular of the impact of (surprise, surprise!) ChatGPT. When the French translation of Gödel, Escher, Bach came out in 1985, it became an immediate success, I read it, enjoyed it and recommended to my inner circles. To the point of my superior in the Navy (during the year I was drafted in the French Navy) saw the cover (for I was also reading it in the Navy office!), browsed through it and asked me to… reproduce the sculpture (a 3D ambigram) for the logo of his own company (for he moonlighted several days a week at an hologram company he had created). Which proved rather straightforward (but I ignore if the result was ever exploited). While I am now much less reserved about the book, which I feel is quite pretentious and self-congratulary, without delivering a particularly deep message, I can related to my earlier self excitement when faced with a scientific book involving many themes of interest for me, pleasant and easy to read, if sometimes mired in heavily making a point. This is obviously a personal view and others, like the science vulgariser launched a celebration for the 40 years of the book. (Coincidence: I had a chat & a beer with a former high school teacher of his’ in Normandy a week before writing this post.)

“it almost feels that way, as if we, all we humans, unbeknownst to us, are soon going to be eclipsed, and rightly so, because we’re so imperfect and so fallible.”

“it feels as if the entire human race is going to be eclipsed and left in the dust soon”

The tone of the interview is hilariously super catastrophic, foreseeing the replacement of humans by their “successors” within a few years, nothing less. There is no deep argument in the discussion, only that AIs are now playing chess and Go better than humans, can provide apparently reasonable answers to many questions, at a speed surpassing human faculties, including poetry or coding. Which proves such a reducing modelling of what constitutes a human being and the meaning of consciousness. (The last line of the interview “YouTube transcript cleaned up by GPT-4 & checked against audio” is hilarious, whether it is intended to be so or not.)

climbing encounters

Posted in Mountains, pictures, Travel with tags , , , , , , , , , , , , on August 28, 2020 by xi'an

A nice if easy climbing morn on Éperon de Bouchier (à ne pas confondre avec Crochet de Boucher!) a week ago with a local guide, François, who happened to be a formidable character (even conditioning on him being guide). He left school at 14 to become a car mechanic, join the French Navy at 16, caught tuberculosis on a Navy basis, was sent to the Alps for recovery, caught a fatal and definite mountain attraction while there, got training supported by the Navy for an higher mechanic degree, took qualification courses to become a French mountain guide, started being interested in learning techniques and abilities through his training ski schools, experimented new teaching methods with kids from the Marseille suburbs,  eventually joined a Master in biomechanics and ergonomy at Orsay and ended up with a thesis on the topic, worked with French ski federation and a French ski brand, and is still guiding, training and researching despite having passed the retirement age! A wonderful chance encounter, with the facility of the route making chatting not an issue. (Except that some puritan ayatollah had recently removed most of the bolts, which did not make things harder in the end but exhibited an absurd degree of self-righteousness on a route that easy…)

And then an even more rewarding climb today with another local guide, Cathy, who gave me a great and profitable climbing lesson for over three hours, allowing me to reach a higher climbing level than I had previously achieved on an outside route. With a high degree of pedagogy and support. I ended up fairly tired, but exhilaratedly so!

bitcoin and cryptography for statistical inference and AI

Posted in Books, Mountains, pictures, Running, Statistics, Travel, University life with tags , , , , , , , , , , , , on April 16, 2018 by xi'an

A recent news editorial in Nature (15 March issue) reminded me of the lectures Louis Aslett gave at the Gregynog Statistical Conference last week, on the advanced use of cryptography tools to analyse sensitive and private data. Lectures that reminded me of a graduate course I took on cryptography and coding, in Paris 6, and which led me to visit a lab at the Université de Limoges during my conscripted year in the French Navy. With no research outcome. Now, the notion of using encrypted data towards statistical analysis is fascinating in that it may allow for efficient inference and personal data protection at the same time. As opposed to earlier solutions of anonymisation that introduced noise and data degradation, not always providing sufficient protection of privacy. Encryption that is also the notion at the basis of the Nature editorial. An issue completely missing from the paper, while stressed by Louis, is that this encryption (like Bitcoin) is costly, in order to deter hacking, and hence energy inefficient. Or limiting the amount of data that can be used in such studies, which would turn the idea into a stillborn notion.