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Sciences et Avenir engagement report

@Sciences_Avenir - 327K followers on X

Measured over 41 original posts from a 30-day window, last computed on October 11, 2026.

Engagement

Middle of its size range
Per follower
0.006%
of 327K followers
Per impression
1.00%
1.9K views on a typical post
Reach
0.58%
of its followers see a post
Typical post
19
interactions (median)
Saved
0.105%
2 bookmarks on a typical post
Posting rate
1.43/day
active 20% of days
Peak time
17:00 UTC
Saturday

A typical post picks up 19 interactions against 327K followers, an engagement rate of 0.006%. Measured over 41 original posts, its engagement rate beats 27% of 21,185 tracked accounts of a similar size, which puts it in the middle of its size range rather than at either end. Posts are seen about 1.9K times each, and 1.00% of those impressions turn into an interaction. That is about 0.58% of the follower count, which is the gap between an audience on paper and an audience in a timeline. Posting runs at about 1.4 post a day over the last 30 days, though only 20% of days saw any activity at all. Most posts go out around 17:00 UTC, and Saturday is the busiest day of the week. Of the 41 posts sampled, 85% carry an image or video and 90% link out. The account's strongest tracked post pulled 306 interactions, about 16x its own typical post. Recurring topics include #jourdelanuit, #journéemondialedesoiseauxmigrateurs, #journéenationaledesdys.

Measured over 41 original posts from a 30-day window, last computed on October 11, 2026. Recurring tags: #jourdelanuit, #journéemondialedesoiseauxmigrateurs, #journéenationaledesdys.

Compared with accounts its own size

Sciences et Avenir's engagement rate beats 27% of the tracked X accounts closest to it in follower count (21,185 accounts, accounts of similar size (decile 10 of 10)). A percentile is spread evenly by construction, so 50 really is the middle of that group and 90 really is its top tenth.

On engagement per impression rather than per follower it beats 47% of the same group. When those two numbers disagree, the gap is about how far its posts travel rather than how people react to them.

Where this sits in the catalog

At 0.006%, Sciences et Avenir sits above the 10th percentile of the 212,567 accounts in this comparison. That places it in the bottom 25% band, which runs below 0.025%.

p100.004%
p250.025%
p50 (median)0.146%
p750.696%
p902.61%
p9982.7%
Engagement rate as a share of followers, across the 212,567 accounts we have scanned enough to measure. The axis is logarithmic, because the top and bottom of this population are about 22,364 times apart and a linear axis would flatten everything below the median into a single point.
Show the percentile table
Engagement rate percentiles
PercentileEngagement rate
10th percentile0.004%
25th percentile0.025%
50th percentile0.146%
75th percentile0.696%
90th percentile2.61%
99th percentile82.7%

This ruler is the whole measured catalog, not a size-matched group: it shows where the raw rate falls across every account we can measure, all of which are large. For a like-for-like comparison, read the size-band percentile above instead. See how the bands are built

Posting timing

This account posts most often around 17:00 UTC, and Saturday is its busiest day of the week. The bars below are the catalog-wide pattern, with this account's own busiest slot marked. They do not show how this account performs at each hour: we keep one aggregate per account, not one per hour, so that measurement does not exist in our data.

Engagement by hour posted, UTCTwenty-four bars, one per UTC hour. Each bar shows how posts published in that hour compare with their own authors' median engagement. Bars above the centre line ran higher than the median, bars below ran lower. A marker flags Busiest hour: 17:00 UTC.
0003060912151821
Above the authors' own mediansBelowScale: plus or minus 111%Busiest hour: 17:00 UTC
Show engagement by hour posted, utc as a table
Engagement by hour posted, UTC
Hour (UTC)Vs author medianPosts
00:00 UTC-1%89K
01:00 UTC-2%90K
02:00 UTC-3%88K
03:00 UTC-4%94K
04:00 UTC-5%76K
05:00 UTC-4%75K
06:00 UTC-5%86K
07:00 UTC-5%93K
08:00 UTC-4%108K
09:00 UTC-4%124K
10:00 UTC-3%129K
11:00 UTC-3%141K
12:00 UTC-3%154K
13:00 UTC-3%167K
14:00 UTC-4%173K
15:00 UTC-2%176K
16:00 UTC-3%171K
17:00 UTC-3%159K
18:00 UTC-2%149K
19:00 UTC-2%141K
20:00 UTC-1%131K
21:00 UTC0%116K
22:00 UTC-2%100K
23:00 UTC-1%90K
Engagement by day of weekSeven bars, one per weekday, Sunday first. Each bar shows how posts published on that day compare with their own authors' median engagement. Bars above the centre line ran higher than the median, bars below ran lower. A marker flags Busiest day: Saturday.
SunMonTueWedThuFriSat
Above the authors' own mediansBelowScale: plus or minus 111%Busiest day: Saturday
Show engagement by day of week as a table
Engagement by day of week
DayVs author medianPosts
Sunday+5%393K
Monday+1%483K
Tuesday-2%520K
Wednesday-3%472K
Thursday-2%430K
Friday-3%447K
Saturday+2%393K
See what moves engagement across the whole catalogWhat counts as a good engagement rate at this size

Formats this account uses

Its own posting mix on the left, and what each of those formats does across every account we track on the right. Only formats where the effect clears our publish test appear here, so an empty row is a format we could not measure rather than one that does nothing.

This account's posting mix compared with catalog-wide effects
FormatThis accountCatalog effect95% intervalAccounts behind it
Image or video85% of posts+111%+108% to +115%34K
Outbound link90% of posts-41%-42% to -40%32K
Typical length-no effect-2% to -1%42K
  • 85% of this account's sampled posts carry an image or video. Across the catalog, posts with an image or video run 111% above the same accounts' other posts.
  • 90% of its posts carry a link off X. Across the catalog, posts with an outbound link run 41% below the same accounts' other posts, so a large share of this account's output sits in the weakest bucket we measure.
  • Its average post runs 202 characters, which falls in the 180 - 280 characters band. Across the catalog, posts of 180 to 280 characters match the same accounts' other posts almost exactly.

These are catalog-wide differences applied to this account's own posting mix, not a measurement of how each format performs for this account specifically. We keep one median per account, not one per format per account, so the second thing is not something this data can tell you.

Best tweets

  • Sep 9, 202616x their median

    Tesla teste son FSD en France : aucun obstacle majeur identifié pour l'adapter à l'Europe https://t.co/8rpDBmv3aC

    2354913967K viewsView on X
  • Sep 7, 20268.3x their median

    🌲 Il y a 56 millions d’années, la Terre s’est réchauffée brutalement. Des paléontologues ont reconstitué cette transformation dans les forêts… et trouvé un parallèle inquiétant avec notre époque. https://t.co/zXfgdHqw7j

    98467712K viewsView on X
  • Oct 9, 20262.9x their median

    Nous n’avons généralement aucun souvenir de nos premières années de vie à cause d’un phénomène : l'amnésie infantile. Pendant longtemps, les scientifiques ont pensé que le problème venait de l’hippocampe. 👉 https://t.co/zUQFhIRtpB https://t.co/p8tzWmR2qa

    3517124.2K viewsView on X
  • Oct 9, 20262.6x their median

    Lors de fouilles à el-Bahnasa, en Égypte, la mission archéologique d'Oxyrhynchos a découvert un papyrus contenant un fragment de l'Iliade d'Homère, sur une momie romaine ! 👉 https://t.co/SCWKeHXmHz https://t.co/bUOBTyY2k5

    3216202.5K viewsView on X
  • Aug 31, 20262.6x their median

    L'épidémie d'Ebola en RDC "progresse de façon exponentielle", alerte l'ONU 👉 https://t.co/38RQTUthbm https://t.co/U1oaCSZQUy

    2719125.0K viewsView on X
  • Oct 11, 20262.4x their median

    Stimuler le cerveau avec des impulsions magnétiques est un traitement déjà prouvé contre la dépression, mais cela nécessite presque deux mois. Ce nouveau protocole accéléré parvient à des résultats comparables en à peine cinq jours de traitement ! 👉 https://t.co/UnzYI2wgB4 https://t.co/GAUmoPJYzm

    3114004.0K viewsView on X
  • Oct 11, 20262.3x their median

    Mettre un pied devant l'autre déclenche de nombreux processus physiologiques protecteurs, au point d'être désormais reconnu comme un élément indispensable à la santé. 👉 https://t.co/ZHC4cEsYKb https://t.co/tCTazFZSlH

    2716012.7K viewsView on X
  • Oct 10, 20262.1x their median

    La capacité de notre cerveau à contrôler l'émergence de souvenirs est fortement altérée chez les personnes souffrant d'un trouble du stress post-traumatique, mais peut être restaurée et prédit la rémission des symptômes. https://t.co/dEQN2jp2yU

    2216202.7K viewsView on X
  • Oct 10, 20262.0x their median

    Une nouvelle projection cartographique du monde a été adoptée à l'ONU, plus conforme à la taille réelle des pays que la projection de Mercator utilisée depuis le 16è siècle et qui minimisait l'Afrique. 👉 https://t.co/MVHCiXK7WG https://t.co/Dd50iPeeJO

    269301.9K viewsView on X
  • Oct 10, 20262.0x their median

    La pollution lumineuse n'empêche pas seulement de voir les étoiles, elle perturbe aussi de nombreuses espèces ! 🦇 #JourdelaNuit 👉 https://t.co/AItN9ZZC3m https://t.co/wELGqVFkCy

    2512101.7K viewsView on X

Ranked by total interactions across everything we have tracked for this account, which is a longer history than the 30-day window the rates above use. The multiple compares each post to this account's own median.

Recurring topics

#jourdelanuit#journéemondialedesoiseauxmigrateurs#journéenationaledesdys

The most frequent hashtags in the sampled posts. They describe what this account writes about; they are not a performance signal, and the catalog-wide breakdown on the hub shows how little hashtag count moves.

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Reading these numbers

A typical post picks up 19 interactions against 327K followers, an engagement rate of 0.006%. Measured over 41 original posts, its engagement rate beats 27% of 21,185 tracked accounts of a similar size, which puts it in the middle of its size range rather than at either end. Posts are seen about 1.9K times each, and 1.00% of those impressions turn into an interaction. That is about 0.58% of the follower count, which is the gap between an audience on paper and an audience in a timeline. Posting runs at about 1.4 post a day over the last 30 days, though only 20% of days saw any activity at all. Most posts go out around 17:00 UTC, and Saturday is the busiest day of the week. Of the 41 posts sampled, 85% carry an image or video and 90% link out. The account's strongest tracked post pulled 306 interactions, about 16x its own typical post. Recurring topics include #jourdelanuit, #journéemondialedesoiseauxmigrateurs, #journéenationaledesdys.

What is Sciences et Avenir's engagement rate on X?
Sciences et Avenir (@Sciences_Avenir) has an engagement rate of 0.006%, based on the median interactions across 41 original posts from the last 30 days against 327,248 followers. Replies, reposts and quote-posts of other people are excluded from that sample.
Is that a good engagement rate?
At 0.006%, Sciences et Avenir sits above the 10th percentile of the 212,567 accounts in this comparison. Those comparison accounts are all large ones, because our scanning cadence is weighted towards big accounts, so this is a ranking among peers of similar scale rather than a ranking across X.
Does @Sciences_Avenir have real engagement?
Its engagement rate beats 27% of the tracked X accounts closest to it in follower count (21,185 accounts), which puts it in the middle of its size range group. Ranking inside a size band matters because engagement rate falls as accounts grow, so a raw rate would mostly re-measure the follower count. It is a starting point for a look at follower quality, not a verdict on it.
When does @Sciences_Avenir post?
Most posts go out around 17:00 UTC, and Saturday is its busiest day, at roughly 1.43 posts per day across the measured window.

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