davidbgk
/
larlet-fr-david


			
							123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550
							<!doctype html><!-- This is a valid HTML5 document. -->
<!-- Screen readers, SEO, extensions and so on. -->
<html lang=fr>
<!-- Has to be within the first 1024 bytes, hence before the <title>
  See: https://www.w3.org/TR/2012/CR-html5-20121217/document-metadata.html#charset -->
<meta charset=utf-8>
<!-- Why no `X-UA-Compatible` meta: https://stackoverflow.com/a/6771584 -->
<!-- The viewport meta is quite crowded and we are responsible for that.
  See: https://codepen.io/tigt/post/meta-viewport-for-2015 -->
<meta name=viewport content="width=device-width,minimum-scale=1,initial-scale=1,shrink-to-fit=no">
<!-- Required to make a valid HTML5 document. -->
<title>Traces — David Larlet</title>
<!-- Generated from https://realfavicongenerator.net/ such a mess. -->
<link rel="apple-touch-icon" sizes="180x180" href="/static/david/icons/apple-touch-icon.png">
<link rel="icon" type="image/png" sizes="32x32" href="/static/david/icons/favicon-32x32.png">
<link rel="icon" type="image/png" sizes="16x16" href="/static/david/icons/favicon-16x16.png">
<link rel="manifest" href="/manifest.json">
<link rel="mask-icon" href="/static/david/icons/safari-pinned-tab.svg" color="#5bbad5">
<link rel="shortcut icon" href="/static/david/icons/favicon.ico">
<meta name="apple-mobile-web-app-title" content="David Larlet">
<meta name="application-name" content="David Larlet">
<meta name="msapplication-TileColor" content="#da532c">
<meta name="msapplication-config" content="/static/david/icons/browserconfig.xml">
<meta name="theme-color" content="#f0f0ea">
<!-- That good ol' feed, subscribe :p. -->
<link rel=alternate type="application/atom+xml" title=Feed href="/david/log/">

  <!-- Canonical URL for SEO purposes -->
  <link rel="canonical" href="https://larlet.fr/david/stream/2018/05/18/">

<style>
/* http://meyerweb.com/eric/tools/css/reset/ */
html, body, div, span,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
a, abbr, address, big, cite, code,
del, dfn, em, img, ins,
small, strike, strong, tt, var,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td,
article, aside, canvas, details, embed,
figure, figcaption, footer, header, hgroup,
menu, nav, output, ruby, section, summary,
time, mark, audio, video {
  margin: 0;
  padding: 0;
  border: 0;
  font-size: 100%;
  font: inherit;
  vertical-align: baseline;
}
/* HTML5 display-role reset for older browsers */
article, aside, details, figcaption, figure,
footer, header, hgroup, menu, nav, section { display: block; }
body { line-height: 1; }
blockquote, q { quotes: none; }
blockquote:before, blockquote:after,
q:before, q:after {
  content: '';
  content: none;
}
table {
  border-collapse: collapse;
  border-spacing: 0;
}

/* http://practicaltypography.com/equity.html */
/* https://calendar.perfplanet.com/2016/no-font-face-bulletproof-syntax/ */
/* https://www.filamentgroup.com/lab/js-web-fonts.html */
@font-face {
  font-family: 'EquityTextB';
  src: url('/static/david/css/fonts/Equity-Text-B-Regular-webfont.woff2') format('woff2'),
       url('/static/david/css/fonts/Equity-Text-B-Regular-webfont.woff') format('woff');
  font-weight: 300;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'EquityTextB';
  src: url('/static/david/css/fonts/Equity-Text-B-Italic-webfont.woff2') format('woff2'),
       url('/static/david/css/fonts/Equity-Text-B-Italic-webfont.woff') format('woff');
  font-weight: 300;
  font-style: italic;
  font-display: swap;
}
@font-face {
  font-family: 'EquityTextB';
  src: url('/static/david/css/fonts/Equity-Text-B-Bold-webfont.woff2') format('woff2'),
       url('/static/david/css/fonts/Equity-Text-B-Bold-webfont.woff') format('woff');
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'TriplicateT4c';
  src: url('/static/david/css/fonts/Triplicate-T4-Code-Regular-webfont.woff2') format('woff2'),
       url('/static/david/css/fonts/Triplicate-T4-Code-Regular-webfont.woff') format('woff');
  font-weight: 300;
  font-style: normal;
  font-display: swap;
}

/* http://practice.typekit.com/lesson/caring-about-opentype-features/ */
body {
  /* http://www.cssfontstack.com/ Palatino 99% Win 86% Mac */
  font-family: "EquityTextB", Palatino, serif;
  background-color: #f0f0ea;
  color: #07486c;
  font-kerning: normal;
  -moz-osx-font-smoothing: grayscale;
  -webkit-font-smoothing: subpixel-antialiased;
  text-rendering: optimizeLegibility;
  font-variant-ligatures: common-ligatures contextual;
  font-feature-settings: "kern", "liga", "clig", "calt";
}
pre, code, kbd, samp, var, tt {
  font-family: 'TriplicateT4c', monospace;
}
em {
  font-style: italic;
  color: #323a45;
}
strong {
  font-weight: bold;
  color: black;
}
nav {
  background-color: #323a45;
  color: #f0f0ea;
  display: flex;
  justify-content: space-around;
  padding: 1rem .5rem;
}
  nav:first-child {
    border-top: 1vh solid #2d7474;
  }
  nav:last-child {
    border-bottom: 1vh solid #2d7474;
  }
  nav a {
    color: #f0f0ea;
  }
  nav abbr {
    border-bottom: 1px dotted white;
  }

h1 {
  border-bottom: .2vh solid #2d7474;
  background-color: #e3e1e1;
  color: #323a45;
  text-align: center;
  padding: 2rem 0 1rem;
  width: 100%;
}
h2 {
  margin: 4rem 0 1rem;
  border-top: .2vh solid #2d7474;
}
h3 {
  text-align: center;
  margin: 3rem 0 .75em;
}
hr {
  height: .4rem;
  width: .4rem;
  border-radius: .4rem;
  background: #07486c;
  margin: 2.5rem auto;
}
time {
  display: bloc;
  background-color: #2d7474;
  color: #e3e1e1;
  padding: .29rem 1rem;
  float: right;
}
ul, ol {
  margin: 2rem;
}
ul {
  list-style-type: square;
}
a {
  text-decoration-skip-ink: auto;
}
article {
  max-width: 50rem;
  display: flex;
  flex-direction: column;
  margin: 3rem auto 1rem auto;
}
  article p:last-child {
    margin-bottom: 1rem;
  }
p {
  padding: 0 .5rem;
}
  p + p {
    margin-top: 2rem;
  }

blockquote {
  background-color: #e3e1e1;
  border-left: .5vw solid #2d7474;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 1rem;
  margin: 1.5rem;
}
  blockquote cite {
    font-style: italic;
  }

figure {
  border-top: .2vh solid #2d7474;
  background-color: #e3e1e1;
  text-align: center;
  padding: 1.5rem 0;
  margin: 1rem 0 0;
  font-size: 1.5rem;
  width: 100%;
}
  figure img {
    width: 250px;
    height: 250px;
    border: .5vw solid #323a45;
    padding: 1px;
  }
figcaption {
  padding: 1rem;
  line-height: 1.4;
}
aside {
  display: flex;
  flex-direction: column;
  background-color: #e3e1e1;
  padding: 1rem 0;
  border-bottom: .2vh solid #07486c;
}
  aside p {
    max-width: 50rem;
    margin: 0 auto;
  }

/* https://fvsch.com/code/css-locks/ */
p, li, pre, code, kbd, samp, var, tt, time {
  font-size: .95rem;
  line-height: calc( 1.5em + 0.2 * 1rem );
}
h1 {
  font-size: 1.7rem;
  line-height: calc( 1.2em + 0.2 * 1rem );
}
h2 {
  font-size: 1.6rem;
  line-height: calc( 1.3em + 0.2 * 1rem );
}
h3 {
  font-size: 1.35rem;
  line-height: calc( 1.4em + 0.2 * 1rem );
}
@media (min-width: 20em) {
  /* The (100vw - 20rem) / (50 - 20) part
     resolves to 0-1rem, depending on the
     viewport width (between 20em and 50em). */
  p, li, pre, code, kbd, samp, var, tt, time {
    font-size: calc( .95rem + .6 * (100vw - 20rem) / (50 - 20) );
    line-height: calc( 1.5em + 0.2 * (100vw - 50rem) / (20 - 50) );
  }
  h1 {
    font-size: calc( 1.7rem + 1.5 * (100vw - 20rem) / (50 - 20) );
    line-height: calc( 1.2em + 0.2 * (100vw - 50rem) / (20 - 50) );
  }
  h2 {
    font-size: calc( 1.5rem + 1.5 * (100vw - 20rem) / (50 - 20) );
    line-height: calc( 1.3em + 0.2 * (100vw - 50rem) / (20 - 50) );
  }
  h3 {
    font-size: calc( 1.35rem + 1.5 * (100vw - 20rem) / (50 - 20) );
    line-height: calc( 1.4em + 0.2 * (100vw - 50rem) / (20 - 50) );
  }
}
@media (min-width: 50em) {
  /* The right part of the addition *must* be a
     rem value. In this example we *could* change
     the whole declaration to font-size:2.5rem,
     but if our baseline value was not expressed
     in rem we would have to use calc. */
  p, li, pre, code, kbd, samp, var, tt, time {
    font-size: calc( .95rem + .6 * 1rem );
    line-height: 1.5em;
  }
  h1 {
    font-size: calc( 1.7rem + 1.5 * 1rem );
    line-height: 1.2em;
  }
  h2 {
    font-size: calc( 1.5rem + 1.5 * 1rem );
    line-height: 1.3em;
  }
  h3 {
    font-size: calc( 1.35rem + 1.5 * 1rem );
    line-height: 1.4em;
  }
  figure img {
    width: 500px;
    height: 500px;
  }
  blockquote {
    margin-left: -1.5rem;
  }
}

figure.unsquared {
  margin-bottom: 1.5rem;
}
  figure.unsquared img {
    height: inherit;
  }

/* https://github.com/richleland/pygments-css */
.codehilite{
    background-color: #fdf6e3;
    margin: 1rem auto;
    padding: 1rem;
    overflow-x:auto;
    box-shadow:inset 0 0 2px rgba(0,0,0,0.2)
}
.codehilite .t{color:#586e75}
.codehilite .w{color:#073642}
.codehilite .err{color:#cb4b16}
.codehilite .k{color:#859900}
.codehilite .kc{color:#2aa198}
.codehilite .kd{color:#268bd2}
.codehilite .kn{color:#b58900}
.codehilite .kp{color:#859900}
.codehilite .kr{color:#073642}
.codehilite .kt{color:#b58900}
.codehilite .n{color:#586e75}
.codehilite .na{color:#2aa198}
.codehilite .nb{color:#268bd2}
.codehilite .nc{color:#268bd2}
.codehilite .ne{color:#cb4b16}
.codehilite .no{color:#2aa198}
.codehilite .nd{color:#2aa198}
.codehilite .ni{color:#2aa198;font-weight:bold}
.codehilite .nf{color:#268bd2}
.codehilite .nn{color:#586e75}
.codehilite .nt{color:#2aa198;font-weight:bold}
.codehilite .nv{color:#cb4b16}
.codehilite .b{color:#859900}
.codehilite .bp{color:#586e75}
.codehilite .v{color:#586e75}
.codehilite .vc{color:#586e75}
.codehilite .vg{color:#268bd2}
.codehilite .vi{color:#268bd2}
.codehilite .m{color:#268bd2}
.codehilite .mf{color:#268bd2}
.codehilite .mh{color:#268bd2}
.codehilite .mi{color:#268bd2}
.codehilite .mo{color:#268bd2}
.codehilite .s{color:#2aa198}
.codehilite .sb{color:#2aa198}
.codehilite .sc{color:#2aa198}
.codehilite .sd{color:#2aa198}
.codehilite .s2{color:#2aa198}
.codehilite .se{color:#cb4b16}
.codehilite .sh{color:#2aa198}
.codehilite .si{color:#cb4b16}
.codehilite .sx{color:#2aa198}
.codehilite .sr{color:#cb4b16}
.codehilite .s1{color:#2aa198}
.codehilite .ss{color:#cb4b16}
.codehilite .il{color:#268bd2}
.codehilite .o{color:#586e75}
.codehilite .ow{color:#859900}
.codehilite .p{color:#586e75}
.codehilite .c{color:#93a1a1;font-style:italic}
.codehilite .cm{color:#93a1a1}
.codehilite .cp{color:#93a1a1}
.codehilite .c1{color:#93a1a1}
.codehilite .cs{color:#93a1a1}
.codehilite .hll{background-color:#dc322f}
.codehilite .g{color:#586e75}
.codehilite .gd{color:#586e75}
.codehilite .ge{font-style:italic}
.codehilite .gr{color:#586e75}
.codehilite .gh{color:#586e75;font-weight:bold}
.codehilite .gi{color:#586e75}
.codehilite .go{color:#586e75}
.codehilite .gp{color:#586e75}
.codehilite .gs{font-weight:bold}
.codehilite .gu{color:#586e75;font-weight:bold}
.codehilite .gt{color:#586e75}

@media print {
  body { font-size: 100%; }
  a:after { content: " (" attr(href) ")"; }
  a, a:link, a:visited, a:after {
    text-decoration: underline;
    text-shadow: none !important;
    background-image: none !important;
    background: white;
    color: black;
  }
  abbr[title] { border-bottom: 0; }
  abbr[title]:after { content: " (" attr(title) ")"; }
  img { page-break-inside: avoid; }
  @page { margin: 2cm .5cm; }
  h1, h2, h3 { page-break-after: avoid; }
  p3 { orphans: 3; widows: 3; }
  img {
    max-width: 250px !important;
    max-height: 250px !important;
  }
  nav, aside { display: none; }
}

/* Dark theme */
[lang=en] body {
  background: #323a45;
}
  [lang=en] article,
  [lang=en] article em,
  [lang=en] article strong {
    color: #f0f0ea;
  }
    [lang=en] article a {
      color: #ffbd2b;
    }
    [lang=en] article a:visited {
      color: #ff6b03;
    }
  [lang=en] blockquote,
  [lang=en] figure {
    background: #111930;
    color: #ccc;
  }
</style>
<nav>
  <p>
    <a href="/david/" title="Profil public">David&nbsp;Larlet</a> partage ses <a href="/david/blog/" title="Expériences bienveillantes">réflexions</a> et sa <a href="/david/stream/2019/" title="Pensées (dés)articulées">veille hebdomadaire</a>.
  </p>
</nav>

<h1>Traces</h1>
<time>2018-05-18</time>
<article>
  <blockquote>
<p>We have all heard about Leave No Trace, but it is important to realize that it’s more than just a set of rules to drag down your experience outside.  It is rather just a shift in attitude towards our wilderness and an ethic.  It is about respect and care for a sensitive environment and doing your part to preserve and protect the limited resources we have and areas where future generations can enjoy as much as you do now.  With this shift of attitude, it simply becomes common sense to abide by the ethical techniques outlined by Leave No Trace</p>
<p><cite><em><a href="http://mtwaddingtons.com/leave-no-trace/">How To: Leave No Trace</a></em> (<a href="/david/cache/17bbfca65bd513c3a513abcb771340a9/">cache</a>)</cite></p>
</blockquote>
<p>À force de passer du temps en forêt, je réalise à quel point les traces laissées par les animaux me sont utiles, que ce soit pour me frayer un chemin ou pour identifier la présence de la faune locale. Je réalise aussi à quel point je peux être silencieux comparé à d’autres espèces et savoir me servir de leurs avertissements, que ce soit un rapace qui défend son aire ou un chipmunk qui annonce un intrus.</p>
<p>La pression touristique là où je chemine est très faible. Et pourtant il y a quand même de vieux déchets ici et là, de cette constatation germe une idée de partir physiquement léger afin de pouvoir revenir chargé (de détritus). L’inverse de la démarche psychologique en quelque sorte…</p>
<p>Cela m’interroge aussi sur <a href="/david/bushcraft/">l’approche bushcraft</a> consistant à acquérir certains savoirs au détriment de l’environnement. De la construction d’un abri semi-permanent à l’élaboration d’un foyer abrité du vent, tout cela laisse des traces. Et dans quelle mesure ces traces sont pires qu’<a href="/david/stream/2018/04/28/">un morceau de titanium</a> provenant d’une extraction et de nombreux traitements ?</p>
<p><em>À quoi renoncer pour être en accord avec ses principes ?</em></p>
</article>


<nav>
  <p>
    <a rel=prev href="/david/stream/2018/05/17/">← Choix d’un métier</a> | <a href="/david/stream/2018/" title="Retour à la liste complète">↑</a> | <a  rel=next href="/david/stream/2018/05/19/">Python dataclasses →</a>
  </p>
</nav>


<aside>
  <p>
    Articles choisis :
    <a href="/david/blog/2018/commodite-effondrement/" title="Accéder à l’article complet">Commodité et effondrement</a>,
    <a href="/david/blog/2017/donnees-communs/" title="Accéder à l’article complet">Des données aux communs</a>,
    <a href="/david/blog/2016/accompagner-enfant/" title="Accéder à l’article complet">Accompagner un enfant</a>,
    <a href="/david/blog/2016/senior-developer/" title="Accéder à l’article complet">Senior developer</a>,
    <a href="/david/blog/2016/illusion-sociale/" title="Accéder à l’article complet">L’illusion sociale</a>,
    <a href="/david/blog/2016/instantane-scopyleft/" title="Accéder à l’article complet">Instantané Scopyleft</a>,
    <a href="/david/blog/2016/enseigner-web/" title="Accéder à l’article complet">Enseigner le Web</a>,
    <a href="/david/blog/2016/simplicite-defaut/" title="Accéder à l’article complet">Simplicité par défaut</a>,
    <a href="/david/blog/2016/minimalisme-esthetique/" title="Accéder à l’article complet">Minimalisme et esthétique</a>,
    <a href="/david/blog/2015/travail-transition/" title="Accéder à l’article complet">Travail en transition</a>,
    <a href="/david/blog/2015/pairmutation-travail/" title="Accéder à l’article complet">La pairmutation du travail</a>,
    <a href="/david/blog/2015/principes-web/" title="Accéder à l’article complet">Principes Web</a>,
    <a href="/david/blog/2015/travail-transition/" title="Accéder à l’article complet">Travail en transition</a>,
    <a href="/david/blog/2014/un-web-omni-present/" title="Accéder à l’article complet">Un web omni-présent</a>,
    <a href="/david/blog/2014/manifeste-developpeur/" title="Accéder à l’article complet">Manifeste de développeur</a>,
    <a href="/david/blog/2013/confort-convivialite/" title="Accéder à l’article complet">Confort et convivialité</a>,
    <a href="/david/blog/2013/testament-numerique/" title="Accéder à l’article complet">Testament numérique</a>,
    et <a href="/david/blog/" title="Accéder aux archives">bien d’autres…</a>
  </p>
</aside>


<nav>
  <p>
    <abbr title="Lieu de vie et de potentielles rencontres actuel">Montréal</abbr> ·
    <a href="mailto:david%40larlet.fr" title="Envoyer un courriel">Contact</a> ·
    <a href="http://larlet.com" title="Identité professionnelle">[Travailler ensemble ?]</a> ·
    <abbr title="Alwaysdata, 62 rue Tiquetonne 75002 Paris, +33.184162340">Hébergeur</abbr> ·
    <a href="/david/log/" title="S’abonner aux publications via RSS">Flux</a>
  </p>
</nav>

  <script>
  /* Service workers */
  if (navigator.serviceWorker) {
    window.addEventListener('load', function () {
      var selector = 'a[href^="/david/cache/"], a[rel=prev], a[rel=next]'
      function sendLinks (selector) {
        var links = [].slice.call(document.querySelectorAll(selector)).map(function (link) {
          return link.getAttribute('href')
        })
        links.push(location.pathname)  // Put the current page in cache too.
        navigator.serviceWorker.controller.postMessage({ links: links })
      }
      navigator.serviceWorker.getRegistration()
        .then(function (registration) {
          if (!registration || !navigator.serviceWorker.controller) {
            return navigator.serviceWorker.register('/serviceworker.js')
              .then(navigator.serviceWorker.ready)
              .then(function () {
                console.log('[ServiceWorker] Ready to go!')
              })
              .catch(console.error.bind(console))
          } else {
            console.log('[ServiceWorker] Send links via registration')
            sendLinks(selector)
          }
        })
      navigator.serviceWorker.addEventListener('controllerchange', function () {
        console.log('[ServiceWorker] Send links via controller change')
        sendLinks(selector)
      })
      navigator.serviceWorker.addEventListener('message', function (event) {
        var link = document.querySelector('a[href="' + event.data.link + '"]')
        if (event.data.status && link) {
          link.style.backgroundColor = '#2d7474'
          link.style.color = '#f0f0ea'
          
            link.setAttribute('title', 'En cache pour consultation sans connexion')
          
        }
      })
    })
  } else {
    console.warn('[ServiceWorker] No cache for old browsers.')
  }
</script>