Note: To read these threads without a Twitter account, if the
direct link does not link (e.g., if you get an obnoxious popup
blocking the view and asking you to log in, try replacing
twitter.com
by nitter.poast.org
in the URL, e.g.,
https://nitter.poast.org/gro_tsen/status/1586032269877444608
instead of
https://twitter.com/gro_tsen/status/1586032269877444608
).
Some of these links (but not all) can also be accessed via
ThreadReaderApp, e.g. use
https://threadreaderapp.com/thread/1586032269877444608.html
for this same thread. (When I convert this Markdown file to HTML I
will try to make it easy to get the link to any version.)
-
2019-01-23: on the density topology
-
2019-03-01: two ways to see the dual of ℓ^∞
-
2019-03-15: some interesting errors found while grading papers
-
2019-03-15: some thoughts on L^∞ and how to see it
-
2019-03-30: using the spherical law of cosines to compute length of day on the solstice
-
2019-03-31: an information-theory problem
-
2019-04-03: using the spherical law of cosines to compute length of day
-
2019-04-08: building a bijective copy of a set disjoint from another in ZF alone
-
2019-04-09: a long thread on Gödel's theorem {in French}
-
2019-04-15: a possible confusion about Boolean algebras and their Stone spaces
-
2019-05-31: from a distribution on complex projective space to one on the simplex
-
2019-06-07: maximal ideals of C(X) versus C*(X)
-
2019-06-10: attempting an intuitive explanation of what the Stone-Čech compactification of ℕ might look like
-
2019-06-17: graph of cosets of W(E₈)/W(D₈)
-
2019-08-05: on the sign of the cosmological constant
-
2019-08-23: sounds of the Riemannian symmetric spaces
-
2019-09-16: axiomatizing the arithmetical consequences of ZFC
-
2019-09-19: on the meeting of the three altitudes of a triangle in spherical geometry
-
2019-10-08: on the space of parallelotopes
-
2019-10-09: a measure of deviation from sphericity of an ellipsoid
-
2019-11-21: a recursive form of the Schröder-Bernstein theorem
-
2019-12-07: norm of the sum of randomly oriented vectors
-
2019-12-09: on the mean motion theorem
-
2019-12-10: graphical illustration of the mean motion theorem
-
2019-12-15: an explanation of why the Stone-Čech compactification of ℤ isn't commutative
-
2019-12-22: Fourier representation of the solution to Kepler's equation (and the Laplace limit)
-
2019-12-23: Fourier representation of the solution to tan(Φ) = p·tan(L)
-
2020-01-01: the complete ring of quotients versus the classical total ring of quotients
-
2020-01-07: what would happen to the Moon's orbit if the Earth's mass were to be suddenly multiplied by 2?
-
2020-01-14: there is a polytope in ℝ⁴ which is not combinatorially equivalent to one with rational vertex coordinates
-
2020-01-27: conformal mapping of the outside of the Mandelbrot set (Fourier coefficients of its boundary)
-
2020-01-29: images of the Mandelbrot set by iteration
-
2020-01-29: computing external arguments for the Mandelbrot set
-
2020-01-30: remarkable points in the Mandelbrot set
-
2020-02-01: remarks on the Doppler shift in general relativity
-
2020-02-04: two intriguing increasing functions with a jump discontinuity at every rational
-
2020-02-06: reconstruction of a sine wave using square waves
-
2020-02-06: reconstruction of a sine wave using triangular waves
-
2020-02-15: the value of the L² dot product of two scaled square waves
-
2020-02-17: how to recognize where the parameter of a Julia set lies in the Mandelbrot set
-
2020-02-18: Langley's adventitious angle problem
-
2020-02-19: analysis of the Julia set with parameter the center of the largest “baby Mandelbrot” set
-
2020-02-22: a few hyperbolic components of the Mandelbrot set
-
2020-03-01: identifying isomorphic objects can be problematic: algebraic closures
-
2020-04-19: increasing by x% should mean “multiplying by exp(x/100)”
-
2020-06-08: a theoretical gadget related to Bell inequalities
-
2020-06-18: a theoretical gadget related to Bell inequalities, II
-
2020-06-23: an apparent contradiction in complexity theory
-
2020-06-24: a remark on the power law of the electric field generated by a dipole
-
2020-07-12: on Popescu-Rohrlich boxes
-
2020-10-02: brief remarks on cardinalities in ZF without Choice {in French}
-
2020-10-02: on the Ji–Natarajan–Vidick–Wright–Yuen “MIP* = RE” paper and how I came across it
-
2021-01-01: remarks on the object represented by continuous real-valued functions
-
2021-02-06: constructive equivalence of two notions of converging to ∞
-
2021-02-10: various field-like rings in topoi
-
2021-02-12: decoding the principle of well-founded induction
-
2021-03-01: a course on Gale-Stewart games {in French}
-
2021-03-04: why do we use elliptic curves in cryptography?, and the quest for cyclic groups
-
2021-04-09: how to popularize the notion of groups
-
2021-04-25: generating random integers from random bits efficiently
-
2021-05-06: various questions on translation-stable bases
-
2021-06-24: the “ace of spades” probability paradox
-
2021-07-12: efficient arithmetic of finite field extensions
-
2021-08-24: median of three independent standard Gaussian variables
-
2021-08-25: variance of the median of three independent standard Gaussian variables
-
2021-09-20: a fun restatement of the 4-color theorem
-
2021-09-13: on Conway's field of “nimbers”
-
2021-09-28: pseudotopological spaces, convergence spaces, etc.
-
2021-09-30: an exercise related to Brouwer's continuity theorem
-
2021-10-03: four notions of convergence of continuous functions
-
2021-10-06: a set of natural numbers of which ZFC doesn't prove that the smallest is even or odd
-
2021-10-07: the double complement of ℚ in the effective topos
-
2021-10-19: a mathematical magic trick
-
2021-10-25: showing constructively that if f is an epimorphism then f is surjective
-
2021-10-25: if {a,b} is complete then a≤b or b≤a in constructive math
-
2021-10-26: various constructive principles around LLPO
-
2021-11-21: gauging exponential growth {in French}
-
2021-12-06: apartness relations
-
2021-12-15: a formulation of the Axiom of Choice
-
2021-12-17: writing in base 10 with digits −4 through 5
-
2022-01-16: six notions of “nonstandard computable”
-
2022-01-19: filters of various sets
-
2022-01-25: "orthogonality" to a dense subset of ℓ²
-
2022-01-27: a brief explanation of forcing {in French}
-
2022-02-01: thoughts on Ext between vector spaces in ZF
-
2022-02-15: approximating equilateral triangles in square lattices
-
2022-02-21: what does the differential closure of ℂ(t) look like?
-
2022-02-21: on operads
-
2022-03-02: a nice projective geometric construction
-
2022-03-03: a monster thread on the algebraic closures of fields, esp. of ℚ and ℂ(t)
-
2022-03-04: examples accompanying the monster thread on the algebraic closures of fields
-
2022-03-09: writing complex numbers in base 2−i using 0, 1, i, −1, −i as digits
-
2022-03-17: focal points of a conic, seen in projective geometry
-
2022-03-18: the q-analogue of binomial coefficients
-
2022-03-22: the q-analogue of counting faces of a hypercube
-
2022-03-23: generalized triangles, generalized quadrangles, generalized hexagons
-
2022-03-28: a continuous war game
-
2022-04-08: a labeling game
-
2022-04-11: on locally bounded functions
-
2022-04-16: defining integer sequences from the proportional voting algorithm
-
2022-05-02: the shape of the conjugacy classes in a Lie group
-
2022-06-11: algorithmically finding the rational with least denominator in a given interval
-
2022-06-13: why are there pseudorandom generators but not pseudogeneric generators?
-
2022-06-16: convexity of intervals in constructive math
-
2022-06-23: if ¬(a=0) and ¬(b=0) then ¬(a·b=0) in constructive math
-
2022-07-07: the Voronoi diagram of E₈, a visualization and more
-
2022-08-12: introduction to the Fabius function
-
2022-08-13: a,b∈U ⇔ a∧b,a∨b∈U in constructive math
-
2022-08-27: counting words with char weight
-
2022-09-01: a question in optics
-
2022-09-01: optics and geometry
-
2022-09-02: the ray equation in optics
-
2022-09-13: 2^(ℵ_α) = ℵ_(α+γ) is consistent iff γ is a natural number ≥1
-
2022-10-04: quantum correlations and nonlocality
-
2022-10-06: correction on quantum correlations, with proofs
-
2022-10-11: the Higgs involution theorem (if f:Ω→Ω is monic then f∘f=id)
-
2022-10-14: the Sierpiński space in constructive math
-
2022-11-17: proving equality between reals from P and ¬P in constructive math
-
2022-12-01: a very short definition of the Lebesgue integral {in French}
-
2022-12-02: if x_n→0 mod A for every A, does it follow that x_n→0 in ℝ?
-
2022-12-15: an exercise in probability (keeping the k best of n die throws)
-
2022-12-27: a caveat on subspaces of quotient topological spaces
-
2022-12-27: computing the curve at distance d from another one
-
2023-01-04: on the Lagrange spectrum and Freiman's constant
-
2023-01-11: on the determinant of the gcd matrix
-
2023-01-11: on the eigenvalues of the gcd matrix
-
2023-01-27: a riddle about hats
-
2023-01-27: a perfect information game (taking turns to pick items)
-
2023-01-27: summarizing Hartshorne's ‘Algebraic Geometry’ in 6 tweets (as a joke…)
-
2023-02-02: first-order Langevin diffusion
-
2023-02-27: plots of q-binomial coefficients
-
2023-03-31: on the unique f:ℕ→ℕ increasing such that f(f(n))=3n for all n, and generalizations
-
2023-04-18: on the notion of “nucleus”
-
2023-05-07: why one should use Shannon entropy to measure complexity of classifications
-
2023-06-01: on the Kreisel-Lacombe-Shoenfield theorem
-
2023-06-25: different kinds of (physically) measurable quantities {in French}
-
2023-11-03: on constructivism and the axion of Choice {pointing to end of thread}
-
2023-11-26: on random versus generic sequences
-
2023-12-21: a riddle about dragons and computability
-
2023-12-22: terms in system F which cannot be typed in the simply typed λ-calculus
-
2023-12-23: pictures of the dyadic and Stern-Brocot trees
-
2024-02-14: on propositional realizability {in French}
-
2024-08-19: an example topological space: the pointed rational extension of ℝ
-
2024-08-20: links on the history of the notion of compactness
-
2024-09-13: a riddle reconstructing a finite set S⊆X from a subset S′⊆S
-
2018-11-02: the international prototype of the kilogram is not “losing mass” as is sometimes claimed
-
2018-11-02: images of the international prototype of the kilogram
-
2019-04-03: the C standard is unreadable
-
2019-04-10: on the ZWNJ character
-
2019-04-27: on the “division” sign
-
2019-07-12: Olber's paradox, or why the night sky is dark
-
2019-09-01: bidirectionality in Unicode
-
2020-01-07: “native retweets” in Twitter
-
2020-02-27: pixel coordinates and the off-by-one-half problem
-
2020-04-23: reminder on Twitter “threads”
-
2020-12-04: trying to make Ubuntu useable
-
2021-01-30: five things missing from Twitter's interface
-
2021-08-18: RGB and the color of the human cone receptors
-
2021-08-21: why do smartphone compasses need recalibration?
-
2021-11-25: some (mostly typographic) conventions I try to follow
-
2022-01-17: on the color of something infinitely hot (and how it was computed)
-
2022-05-28: an algorithm for partitioning a country in two
-
2022-06-01: the bases of thermodynamics explained for the general public {in French}
-
2022-08-04: a proposal for dealing with leap seconds
-
2022-08-10: various illustrations of climate change
-
2022-08-16: scatterplot of various meteorological variables {in French}
-
2022-08-18: time seems to be rounded down rather than to closest
-
2022-08-27: amount of information in a tweet
-
2022-09-19: I would never have believed the Manhattan project in fiction
-
2022-10-26: “pointers are complicated”, why C semantics are a mess
-
2022-10-28: average mean temperature in France by season and year {in French}
-
2022-11-13: the entire HTTPS security model makes no sense
-
2022-12-03: sur la capacité de stockage STEP de l'électricité {en français}
-
2022-12-03: thoughts on the CGPM's decision to scrap seconds
-
2022-12-05: distribution of France's electrical power consumption and production {in French}
-
2022-12-06: distribution of France's electrical power consumption and production, part 2 {in French}
-
2022-12-06: power consumption in France versus mean temperature {in French}
-
2022-12-11: distribution of temperature by day of year in France {in French}
-
2022-12-16: autocorrelation of temperature in France at n days interval {in French}
-
2022-12-17: correlation of temperatures between various French cities {in French}
-
2022-12-23: maps of climate change in Europe {in French}
-
2022-12-25: temperature range in France by season and year {in French}
-
2023-01-06: writing a self-hosting interpreter
-
2023-01-17: how our cells produce ATP
-
2023-01-26: gravitation travels at the speed of light but still acts as intantantaneous action at a distance
-
2023-01-28: why forces in relativity appear to act as if instantaneously {in French}
-
2023-01-30: does arsenic have a biological role?
-
2023-01-31: how to obtain daily average temperatures in France {in French}
-
2023-01-31: a statistical analysis of daily temperatures in France {in French}
-
2023-02-02: Twitter is ending its free public API (and what this means)
-
2023-02-03: trying to reverse-engineer the format of the Android Twitter app's cache
-
2023-02-06: quick tuto for grabbing JSON data from Twitter through Firefox
-
2023-02-08: very quick notes about the Twitter “archive of your data”
-
2023-02-21: Perl scripts to process JSON data sent by Twitter to its web client and store in a PostgreSQL database
-
2023-02-23: on the process I use to scrape my own tweets' data from Twitter
-
2023-03-23: graphs of cumulative precipitations in France {in French}
-
2023-03-24: a curious discrepancy between sources on meteorological data {in French}
-
2023-03-30: using
yt-dlp
to download videos from Arte's web site: the case of multiple subtitles {in French} -
2023-04-24: complaining that Android can't do backups
-
2024-07-24: a typology of superintelligent AIs
-
2020-03-07: on the attack rate predicted by the basic SIR model
-
2020-03-10: the two main strategies in dealing with an epidemic
-
2020-03-19: remarks on the Imperial College paper by Neil Ferguson &al
-
2020-03-22: numerical experiments on the influence of the social graph structure on the attack rate of epidemics
-
2020-04-13: why you can't expect epidemiological models to give you useful predictions
-
2020-04-16: varions problems around the definition of “herd immunity”
-
2020-04-20: how the hive mind gets nasty on the mere mention of “herd immunity”
-
2020-04-21: on superspreaders and superspreadees
-
2020-04-25: on the WHO claiming “no evidence” that recovery confers immunity
-
2020-04-25: estimating the basic epidemiological parameters of HCoVs
-
2020-05-07: attack rate as a function of the variance of infectious contacts for random graph models
-
2020-05-07: addressing the “armchair epidemiologist” accusation
-
2020-05-08: attack rate as a function of the variance of infectious contacts for random graph models, II
-
2020-05-12: the n-compartmented SIR model
-
2020-05-22: “bottom-up” and “top-down” heterogeneity
-
2020-09-01: the problem with outdoors mask mandates {in French}
-
2020-10-22: on the issues with devising a study on mask effectiveness
-
2020-10-25: on the meaning of effective reproduction number and how they are computed
-
2020-11-05: a clarification concerning R₀ and “herd immunity”
-
2020-11-13: quelques réflexions sur le documentaire complotiste “Hold Up”
-
2020-11-15: “listen to the experts” raises the question of which experts we should listen to
-
2020-11-24: life expectancy does not decrease by 1 year per year {in French}
-
2020-12-08: “herd immunity does not work because over 60% have been infected in place X”
-
2020-12-10: a misleading claim re life expectancy
-
2020-12-11: a comparison of hydroxychloroquine and lockdowns
-
2020-12-18: the difficulty of causal inference illustrated with magic wants {in French}
-
2020-12-28: “Sweden must be compared with its neighbors”
-
2021-02-03: the double standards of wanting to refer to peer-review {in French}
-
2021-03-19: multiple exaggerations on the herd immunity threshold {in French}
-
2021-03-21: SIR with variable susceptibility {in French}
-
2021-03-21: SIR with variable susceptibility
-
2021-03-31: a utilitarian thought experiment {in French}
-
2021-04-11: on a bunch of unfounded assumptions {in French}
-
2021-04-12: on resisting the temptation to predict the future {in French}
-
2021-04-15: numerical simulations of an epidemic with two viral variants and heterogeneity
-
2021-05-16: on the main hypothesis of variant theory
-
2021-06-21: on “indirect effects” of certani covid measures {in French}
-
2021-07-26: heterogeneity through vaccine efficacy
-
2021-08-18: on “herd immunity”
-
2021-11-04: meta-thread on epidemiology
-
2021-12-13: is it worse when a pathogen is more lethal or more transmissible? it depends on many things!
-
2023-12-23: why ER room visits are the best covid indicator {in French}
-
2021-12-27: on the silliness of outdoors mask mandates {in French}
-
2021-12-29: on the steady state of the SIR model
-
2022-03-13: when I will be wearing a mask {in French}
-
2022-09-20: weird coincidences about covid {in French}
-
2022-10-04: monkeypox stopped growing: why didn't anybody care?
-
2022-10-16: multiply infected having worse outcomes doesn't mean multiple infections tend to be worse
-
2023-02-26: thought on the Cochrane mask review and how we form beliefs
-
2019-03-18: allée royale de Villepreux
-
2019-04-07: le domaine de Méréville
-
2019-04-22: le domaine de Chamarande
-
2019-11-08: vaches des Highlands de Saint-Lambert-des-Bois
-
2020-06-06: remarques sur les types de forêts
-
2020-08-04: rencontres à moto
-
2020-09-20: jardin du Point du Jour à Verdelot
-
2021-03-21: arbres en fleur à Orsay
-
2021-06-06: vallée de la Louette et la Chalouette
-
2021-06-13: état de nos balades au 2021-06-13
-
2021-07-26: bizarrerie géographique à Lormaye (Eure-et-Loir)
-
2021-07-26: plan d'eau de Mézières-Écluzelles
-
2021-08-02: vallée de l'Eure du confluent à Anet
-
2021-09-05: donjon de Vez
-
2021-09-05: vallée de l'Automne
-
2021-10-24: les Andelys et alentours
-
2021-12-11: vaches des Highlands de Saint-Lambert-des-Bois, suite
-
2022-02-13: carrières de Feularde
-
2022-02-18: état de nos balades au 2022-02-18
-
2022-03-18: cerisiers en fleur à Versailles-Chèvreloup
-
2022-03-20: de Chevreues à Saint-Forget
-
2022-05-01: quelques vues de Honfleur
-
2022-05-21: autour du lac de Cergy
-
2022-05-22: parc André Malraux à Nanterre
-
2022-07-16: nouveau visite du jardin du Point du Jour
-
2022-07-16: entre Colombes et Nanterre
-
2022-08-09: sanatorium d'Aincourt
-
2022-09-03: entre Suresnes et Puteaux
-
2022-09-17: entre Dampierre et Senlisse
-
2022-09-18: jardin des impressionnistes à Rueil-Malmaison
-
2022-09-18: entre Nanterre et Bougival
-
2022-10-09: tour de Montlhéry
-
2022-10-22: désert de Retz
-
2022-11-13: le Plessis-Robinson
-
2023-05-14: la boucle de Moisson
-
2024-03-23: cerisiers en fleur à Versailles-Chèvreloup
-
2024-04-11: souvenirs de l'éclipse solaire du 1999-08-11
-
2024-05-20: arboretum des Grandes Bruyères
-
2018-08-26: what is totipsism?
-
2018-10-06: on linguistic prescriptivism {in French}
-
2019-03-29: the danger of seeing morals in black and white
-
2019-04-18: how journalists choose their experts {in French}
-
2019-04-23: the problem with counting science publications
-
2019-04-24: on incels and self-loathing
-
2019-05-02: opposite sides in a debate are often objective allies in keeping attention on the debate
-
2019-05-12: mode de scrutin en France pour les européennes {en français}
-
2019-07-18: is the Isle of Mann part of the UK?
-
2019-08-23: on the history of the term “Big Bang”
-
2019-10-22: une anecdote sur la maréchale de Richelieu {en français}
-
2019-12-01: les derniers mots de Marie-Antoinette {en français}
-
2019-12-18: modern roundabouts and traffic circles {in French}
-
2020-06-25: Google, Apple, Facebook and Amazon reimagined as supervillains
-
2020-07-08: équipement à moto {en français}
-
2020-07-09: le labyrinthe légal des “métropoles” {en français}
-
2020-07-30: an epistemological question: what does it mean to predict a coin flip?
-
2020-10-16: on the meaning of the all-too famous “essential Liberty” vs “temporary safety” quip by Ben Franklin
-
2020-10-17: concerning the £1M and £100M banknotes
-
2020-11-27: sur une émission d'Arte sur l'histoire de l'écriture {en français}
-
2020-11-28: sur une émission d'Arte sur l'histoire de l'écriture, suite {en français}
-
2021-01-12: “have epidemiologists said anything non-trivial?” {in French}
-
2021-01-21: la venue de Macron à Saclay pour annoncer son “plan quantique” {en français}
-
2021-02-05: marvel how the human brain manages to do things it never evolved to do
-
2021-02-24: on regenerative braking {in French}
-
2021-04-09: sur les Schtroumpfs {en français}
-
2021-04-18: identifiants territoriaux sur les plaques d'immatriculation {en français}
-
2021-05-19: please attack arguments at their strongest link, not the weakest
-
2021-05-20: on the use of technical terms and distinctions {in French}
-
2021-07-05: remarks on conspiracy theories
-
2021-07-06: dérivation d'une ligne électrique 225kV {en français}
-
2021-07-09: AI-generated images for a set of standard prompts
-
2021-07-12: people we follow can lock us in a content bubble, but so can people who follow us
-
2021-07-17: do governments trust their population?
-
2021-07-25: motorcycle gear shifting and muscle memory
-
2021-08-30: sur le pouvoir des préfets {en français}
-
2021-11-02: sur le concours général des lycées {en français}
-
2021-12-01: on the Apple TV Foundation series
-
2021-12-13: histoire des collectivités territoriales en France {en français}
-
2021-12-17: on the history of the “dangerous bend” symbol
-
2022-02-13: on the ‘Backrooms’ Internet meme/legend
-
2022-02-25: on Russian vs Ukrainian vowels
-
2022-03-20: mathematical terms that can be surprising to the general public
-
2022-04-11: on binding precedent {in French}
-
2022-05-09: the presentation of the IPCC reports is atrocious
-
2022-05-30: some (humorous) conspiracy theories that have yet to catch on
-
2022-06-20: conversations with customer helplines {in French}
-
2022-07-08: words whose etymologies are surprisingly unrelated {in French}
-
2022-07-09: on the order of adjectives
-
2022-07-12: re teachers sleeping with their students {in French}
-
2022-07-17: the ultimate question and the ultimate answer
-
2022-07-23: courrier au Parc naturel régional de la Vallée de Chevreuse au sujet des vaches des Highlands {en français}
-
2022-08-21: one-star and five-star reviews outnumber the rest
-
2022-08-31: videos of a rotating transparent dodecahedron
-
2022-09-09: 20 counterfactual statements (a poll)
-
2022-09-11: on the history of “God Save the King”
-
2022-09-11: we need more solarpunk movies
-
2022-09-23: can you say “I met King Charles III” if you met him before he was king?
-
2022-10-16: it's OK to “steal” jokes
-
2022-10-28: on Elon Musk buying Twitter
-
2022-11-03: driving at 110km/h vs at 130km/h {in French}
-
2022-11-06: propriété intellectuelle sur l'éclairage nocturne de la tour Eiffel {en français}
-
2022-11-09: billionaire tech bosses are not geniuses
-
2022-12-03: sur l'importance de comprendre la différence entre énergie et puissance {en français}
-
2022-12-09: accusative alignment versus ergative alignment
-
2022-12-20: the reason why carots are orange
-
2022-12-25: a collection of confusing facts, courtesy of the Context Club
-
2023-01-15: on the 1987 Soviet adaptation of ‘The End of Eternity’
-
2023-01-19: listing my 20 most popular tweets up to 2022
-
2023-01-23: what do the amino acids taste like?
-
2023-01-26: variations on the German eagle
-
2023-01-28: on an omniscient oracle, but with a twist (tripartite answers)
-
2023-01-30: on the taste of cysteine and phelylalanine
-
2023-02-07: on the fear and fascination of liminal spaces
-
2023-03-16: on ‘r’ vocalization in English vs German
-
2023-03-19: on the legality of “kettling” under European and French law {in French}
-
2023-03-26: answering the “one more lane will fix traffic” strawman
-
2023-04-07: are we willing to defend the freedoms of our enemies? {in French}
-
2023-04-08: why people change their minds about politicians {in French}
-
2023-04-09: Victor Hugo on Joseph Fourier versus Charles Fourier {in French}
-
2023-09-06: on the origin and citogenesis of a map claiming to show “androgenic hair” across the world
-
2023-11-05: on the barycenters of French regions computed with PostGIS {in French}
-
2024-05-20: various reasons motorcycles are dangerous
-
2024-05-28: gender categories in sports
-
2024-05-29: gender categories in sports: followup points
-
2024-06-11: correlations between results of differnt lists in the Europarl 2024 election in France {in French}
-
2024-06-13: a retrospective look at the French left {in French}
-
2024-06-21: on the name of the “Île-de-France” region {in French}
-
2024-06-24: defending my French and Canadian citizenship {in French}
-
2024-06-26: nationality is a matter of internal law {in French}
-
2024-07-18: on the current affairs government {in French}
-
2024-07-19: Paris during the olympics
-
2024-07-20: Paris during the olympics: a few followup points
- 2022-12-21: horny on main (a collection of guy pics)