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Stephen Senn

@stephensenn.bsky.social
1.8K followers 251 following 1.3K posts

Swiss & British statistician.

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Stephen Senn @stephensenn.bsky.social · 26/09/2026
I shall be attending the International Society for Clinical Biostatics in Freiburg next week (I think it will be my 40th) together with the German Association for Medical Informatics, Biometry and Epidemiology (GMDS) but am travelling via my hometown #Basle #Basel #Bâle #Basilea #ISCB47 #GMDS71
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Stephen Senn @stephensenn.bsky.social · 26/09/2026
What does time travel look like when transformed to the frequency domain?
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Stephen Senn @stephensenn.bsky.social · 18/09/2026
Chaos on arrival at Edinburgh Airport where bags that were announced as being delivered on belt 8 were delivered on belt 7.
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Stephen Senn @stephensenn.bsky.social · 17/09/2026
It’s goodbye to the Alps for the moment. Our hiking started a few days ago in Villars-sur-Ollon, where I spent my teenage years. #hiking #Vaud #Switzerland #nostalgia
The Chamossaire and the Lac de Bretaye.Cows grazing near the Lac des ChavonnesHiking along the Chaux Ronde ridge.View of the Dents du Midi (R) from Bretaye. My Blanc (L)
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Stephen Senn @stephensenn.bsky.social · 17/09/2026
We are leaving Binn this morning after a wonderful few days’ hiking. It is nice to see that the way of the Senns gets a mention.
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Stephen Senn @stephensenn.bsky.social · 16/09/2026
Unpopular opinion. I care as much about Ed Sheeran’s opinion on politics as I do about Andy Burnham’s on music and I couldn’t care less what they think of the likelihood principle, although I would like the latter to understand basic arithmetic.
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Stephen Senn @stephensenn.bsky.social · 16/09/2026
Today we did two walks from Binn. The first was along the Twingi gorge. The second was to Heiligkreuz and back. #hiking #Binntal #Wallis #Valais #Switzerland
The chapel at Twingi StubjiA waterfall in the Twingi gorge.Cows and alpine huts on the path to Heiligkreuz.On the path to Heiligkreuz. A view of what may be the Hillehorn.
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Stephen Senn @stephensenn.bsky.social · 15/09/2026
Today we took the bus from Binn to Brunnebiel, walked to the Albrunpass on the Swiss and back to Binn. (I am shattered.) #hiking #Binntal #Valais #Wallis #Switzerland
Approaching the Binntal Hut. View of the Ofenhorn (I think) with the Binne stream in the foreground.View of the Bochtehorn group.Looking NE along the Halsesee lake to the Hohsandhorne (I think) which is reflected in the waters of the lake.The Bietchhorn framed between two rocks.
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Stephen Senn @stephensenn.bsky.social · 14/09/2026
Today we hiked from Binn to Fäld and beyond. #hiking #Binntal #Valais #Switzerland
Approaching the hamlet of Holzerhischere. Rosehips in the foreground.In Fäld. Note the house on stilts with stone caps to prevent rodents getting in.Waterfall and pool on the Mässerbach stream.View of Fäld from the “mineral way”. (The Binntal is famous for its geology and gems.)
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Stephen Senn @stephensenn.bsky.social · 13/09/2026
Today we hiked above Vercorin #hiking #Valais #Switzerland These are views from La Brinta.
Looking towards the Dents du Midi (array of 7 peaks far distance, just L of centre)Gentian. L to R in distance Weisshorn, Zinal Rothorn, Obergabelhorn.Looking towards the Bietschhorn.
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Stephen Senn @stephensenn.bsky.social · 08/09/2026
I am proud and delighted that my daughter, Helen Watson’s book, Tea and Grit has been shortlisted for the Ilse Schwepcke prize share.google/Cj8aRZmW62mA...
share.google
Badenoch bike epic on Silk Road up for richest literary prize for women
Newtonmore explorer shortlisted for major travel writing accolade
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Stephen Senn @stephensenn.bsky.social · 07/09/2026
Yesterday we visited Barjols, a pretty little town with 42 fountains, which must surely be cause for deep thought. #Provence #France
Waterfall in the Vallon des Carmes.Pool in the Vallon des Carmes.View of the town through archway.Waterfall in the Ruisseau des Ecrivisses.
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Stephen Senn @stephensenn.bsky.social · 06/09/2026
A visit to Cotignac. #Provence #France
The village and its cliff.View of the village from above. Signs of wildfire damage in distance.A path down the cliff.A view of the cliff at Cotignac.
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Stephen Senn @stephensenn.bsky.social · 06/09/2026
We are having a holiday in Garéoult #hiking #Provence #France
Vineyard in Garéoult.Vineyard looking to the Barres de Chabards.Lavoir de St Médard.Looking downstream from the St Médard spring.
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Stephen Senn @stephensenn.bsky.social · 18/08/2026
Today was a mixture of beach level strolling and cliff top walking from Robin Hood’s Bay to Stoupe Beck and back via Boggle Hole. #hiking #Yorkshire
The cottage in Robin Hood’s Bay.Looking to the headland at Ravenscar.Looking back at Robin Hood’s Bay and Ness Point beyond.The “hole” at Boggle Hole. The denizen should be left undisturbed for, in the words of my late friend, Pete Knight, “The Boggle Mind”.
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Stephen Senn @stephensenn.bsky.social · 16/08/2026
Yesterday we had a stroll around Guisborough and today we are in Robin Hood’s Bay. Both are in the historic county of #Yorkshire.
Ruins of Guisborough Priory.A cathedral of trees at Guisborough Priory.Looking N towards the cliffs of Ness Point from the beach at Robins Hood Bay an hour or so after low tide. Various small boats in the foreground Looking S from Robin Hood’s Bay towards the cliffs by Ravenscar. Expanse of rocks and seaweed in the foreground.
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Stephen Senn @stephensenn.bsky.social · 14/08/2026
Today’s hike was up Roseberry Topping and Little Roseberry Topping from Guisborough. It was a bit of a bushwhack at the end and Mrs S was not pleased, so I had to eat the pie which is humble. (But a good walk, nonetheless.) #hiking #NYorkMoors
Roseberry Topping with a field of cylindrical straw bales in the foreground.Little  Roseberry Topping with heather in bloom in foreground.Looking to Roseberry Topping from Little Roseberry Topping.The Hanging Stone with a view of Highcliff Nab in the distance.
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Stephen Senn @stephensenn.bsky.social · 14/08/2026
LNER send me a seat number notification reminder. This is very helpful. 👍 They also invite me to sit down and get comfortable while then informing me that there is no platform yet. #AIfail
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Stephen Senn @stephensenn.bsky.social · 14/08/2026
TBF, I understand that not being present in Clacton is very consistent.
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Stephen Senn @stephensenn.bsky.social · 13/08/2026
I spent yesterday unastronomically observing a notality.
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Stephen Senn @stephensenn.bsky.social · 08/08/2026
Today I was back in the #Pentlands. We hiked from Bonaly to Torphin via Clubbiedean. #hiking #Ediburgh #Scotland
Path and wooden footbridge over the Dean Burn.Looking NE along the Torduff Reservoir. Edinburgh Castle in far distance. Rowan trees an heather in bloom in the foreground.Looking past some crags to Torduff reservoir.On the slopes of Warklaw Hill. Harebells in the grass. Arthur’s Seat in the distance.
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Stephen Senn @stephensenn.bsky.social · 06/08/2026
What happens to precision when you fit a covariate when analysing a clinical trial? Our latest paper tells you www.linkedin.com/pulse/three-...
linkedin.com
The three effects of covariate adjustment
Some news I am delighted to announce that a paper Martin Posch, Franz König and I have been working on for a while now has finally been published. Stratification in small randomised clinical trials an...
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Stephen Senn @stephensenn.bsky.social · 06/08/2026
Today’s hike was from Torphin to Flotterstone over Capelaw and Harbour Hill. #hiking #Pentlands #Scotland
View of Arthur’s Seat from Torduff. Rowan tree and heather in foreground. UVArthur’s Seat from the slopes of Capelaw. The Bass Rock and N Berwick Law visible far right. Crags & heather foreground RLooking to Allermuir from the slopes of Capelaw. Thistle in foreground.The Pentlands main ridge. L to R: Turnhouse, Carnethy, Scald Law, E Kip, W Kip.
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Reposted by Stephen Senn
Twi77er-Yee-Nott @ye-nott.bsky.social · 25/07/2026
On 'Bindependence Day', don't forget to make your vote 'Count'
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Stephen Senn @stephensenn.bsky.social · 02/08/2026
Wonderful stuff. Rather ashamed that as a Swiss I had to learn the optimal way to climb mountains at an advanced age after decades of hiking in mountains from someone based in Belgium.
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Stephen Senn @stephensenn.bsky.social · 01/08/2026
My mother was from Yorkshire and my father was from Switzerland. Today, 1 August, is the day that Tykes and Swiss celebrate. en.wikipedia.org/wiki/Yorkshi... en.wikipedia.org/wiki/Swiss_N...
en.wikipedia.org
Yorkshire Day - Wikipedia
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Stephen Senn @stephensenn.bsky.social · 30/07/2026
I mean Switzerland/Sweden or Britain/Brazil, they sound so similar. Meatballs or muesli, tea or coffee, Lucerne or Lulea, Copacabana or Clacton. It’s so confusing.
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Stephen Senn @stephensenn.bsky.social · 29/07/2026
If you confuse Switzerland and Sweden you have my sympathy. I have a similar issue with Britain and Brazil.
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Stephen Senn @stephensenn.bsky.social · 29/07/2026
Today’s hike was from Gateside to Kinross town via West Lomond. #hiking #Fife #Kinross #Scotland
View of West Lomond, the highest hill in Fife.The fantastic rock formation known as the Bunnet Stane.Waterfall in Glen ValeView of Loch Leven.
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Stephen Senn @stephensenn.bsky.social · 28/07/2026
Unpopular opinion. The availability of expensive medicines is not a problem. The non-availability of cheap medicines is. Who is failing to provide cheap medicines? It’s not only those who are providing expensive medicines but also everyone else.
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Stephen Senn @stephensenn.bsky.social · 26/07/2026
This is not what we had in mind when filling the bird feeder.
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Stephen Senn @stephensenn.bsky.social · 26/07/2026
Today is our last day in Marsden and our first day of rain. We have just had a stroll along the Huddersfield Narrow Canal to the Standedge tunnel end. canalrivertrust.org.uk/canals-and-r...
The Marsden Shuttle approaching tunnel end.Looking to Pule Hill, through which the tunnel passes.Lock 39 on the Huddersfield Narrow Canal.The Huddersfield Narrow Canal just to the E of Marsden.
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Stephen Senn @stephensenn.bsky.social · 24/07/2026
View of area of moorland on fire above the Blakely Reservoir near #Marsden #Yorkshire The fire is recent. We passed this way on Monday and visited the waterfall nearby.
Looking down on old bridge and to Blakely Reservoir. The Pennine Way skirts to the right of the burning patch beyond the reservoir.Waterfall by area of moorland that has now been burnt.
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Stephen Senn @stephensenn.bsky.social · 24/07/2026
Today’s hike was a circular from Marsden taking in Shooters Nab. #hiking #Yorkshire
Thistles and rowan trees.Ford on beck near Piper Stones.Looking to Pule Hill along the Blackmoor Foot Conduit.Approaching Shooters Nab.
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Stephen Senn @stephensenn.bsky.social · 24/07/2026
There’s always one who’s a #Coldplay fan.
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Reposted by Stephen Senn
Richard W. Bown is 📝 editing @bownie.bsky.social · 23/07/2026
Very excited to reveal my new book coming in early 2027 #booksky onemoreislandbook.com
onemoreislandbook.com
One More Island - the new novel by Richard W. Bown
The new novel from Richard W. Bown. Coming 2027.
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Stephen Senn @stephensenn.bsky.social · 23/07/2026
Presumably, a piña collider.
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Stephen Senn @stephensenn.bsky.social · 23/07/2026
In all likelihood a favourite Bayesian beer.
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Stephen Senn @stephensenn.bsky.social · 22/07/2026
Today’s hike was a circular with @dunniton.bsky.social and our wives taking in Cupwith Reservoir. #hiking #Yorkshire It was nice to catch up with old friends.
Thistles in Huck Hill Lane.Frog on Netherwood Heys HillWooded clough near Slaithwaite Hall.Marker stone with relief carving of a packhorse.
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Stephen Senn @stephensenn.bsky.social · 20/07/2026
TBF, referring to football as “soccer” is very confusing, so if some teams start playing “sock ‘em”, nobody should be surprised.
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Stephen Senn @stephensenn.bsky.social · 20/07/2026
More pictures from today’s hike from #Marsden #hiking #Yorkshire
Tree, track and moor near Binn moor.View of Pule Hill from The #PennineWay near Blakely Clough.Gristone rocks on Millstone Edge.The Easter Gate Packhorse bridge near the end of the walk, scene from upstream.
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Stephen Senn @stephensenn.bsky.social · 20/07/2026
The bracken on today’s hike was about one wife high. #hiking #Yorkshire
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Stephen Senn @stephensenn.bsky.social · 20/07/2026
Today’s hike was a circular from Marsden taking in Millstone Edge. #hiking #Yorkshire
View of the Wessenden Reservoir.Old gateposts looking to Wessenden Moor.Waterfall, pool and stepping stones in the Shiny Brook Clough.The dinner stone (a millstone grit formation on Millstone Edge) looking to the Castleshaw Reservoirs.
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Stephen Senn @stephensenn.bsky.social · 19/07/2026
I see that my prediction that the match would be won by a Spanish-speaking team was spot on.
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Stephen Senn @stephensenn.bsky.social · 19/07/2026
Today’s hike was a circular from #Marsden taking in the Easter Gate packhorse bridge. #hiking #Yorkshire
View of the Easter Gate packhorse bridge looking up the Haigh Clough beck. A ford on the beck in Redbrook Clough.Footpath between drystone walls leading up from Redbrook Clough.View of the crags on Pule Hill. Crags at Nab End in the foreground.
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Stephen Senn @stephensenn.bsky.social · 19/07/2026
It all goes to show that it’s a game of two halves and, these days, sometimes four quarters.
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Stephen Senn @stephensenn.bsky.social · 18/07/2026
We are in Marsden and today’s hike was the Butterly circular. #hiking #Yorkshire
Waterfall in Carr Clough View of the Butterfly Reservoir with bilberry plant in foreground.The spillover on the Blakely reservoir Footpath near Ram’s Clough
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Stephen Senn @stephensenn.bsky.social · 15/07/2026
“Dear xxx. I already think that the evolution of computer system to suit publishers and inconvenience authors and reviewers has gone too far and AI will only make it worse. Good luck handling the siege of the paper mills. My advice to you is get your retraction policy ready.”
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Reposted by Stephen Senn
Sophie Carr @sophiecarr.bsky.social · 13/07/2026
Another image from Bonnie Scotland - this time from Loch Lurgainn in golden hour light, taken in December 2025. #Scotland #CanonR5markII
A pointy mountain in shade in the distance, with golden autumnal landscape in the foreground. In the middle is a little lake with some reeds in the water that are glowing bright gold. The sky is a kind of grey blue with some grey clouds.
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Stephen Senn @stephensenn.bsky.social · 14/07/2026
We have just passed Blair Atholl & I can think of no reason why you should not all be reminded of the Ballad of Glen Tilt www.cairngormclub.org.uk/journals/PD
cairngormclub.org.uk
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