iiinova — where your digital self keeps evolving

Adam Elbourne @drelbourne.bsky.social · 12/10/2026

Biked up my first ever hors categorie climb today (there aren't any in the Netherlands 😀). I stopped a few times and it took me 1 hour 15 minutes.

View of the climb and it's many hairpin bends.

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Adam Elbourne @drelbourne.bsky.social · 10/10/2026

Gran Canaria has got some amazing cycling.

View from Artenara towards Tejeda and Roques Bentayga and Nublo from the GC-210.

The view West on the GC-200 just West of Veneguera.

The view North East from the GC-150 just outside Cruz de Tejeda.

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Adam Elbourne @drelbourne.bsky.social · 10/10/2026

I'm very pleased to announce that at the end of the week, the level of the breakfast vodka is the same as when we arrived.

Vodka on offer as part of the breakfast buffet in our hotel. The level is the same as it was at the start of the week when we arrived.

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Adam Elbourne @drelbourne.bsky.social · 06/10/2026

I've seen champagne and wine for breakfast in a hotel before, but our current hotel offering vodka is a first. Buenos días indeed. Come to think of it, you must be going through a tough patch in your life to even contemplate vodka for breakfast, so maybe buenos días is aspirational... 🤔

A bottle ofvodka at the breakfast buffet.

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Adam Elbourne @drelbourne.bsky.social · 01/10/2026

Pre-hispanic Canarians had good teeth.

Photo of a skull with almost perfect teeth.

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Adam Elbourne @drelbourne.bsky.social · 10/06/2026

Day 4 of my first symptomatic respiratory infection since 2019 and I'm glad I haven't had any for 7 years. I'm guessing it's a rhinovirus since I've done a few on these 9in1 selftests that don't include rhinoviruses, and they've been negative for everything.

9in1 selftest that is negative for all 9 pathogens.

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Adam Elbourne @drelbourne.bsky.social · 01/06/2026

One thing I wasn't expecting in Burgos was the street art. Lots of shops and garage doors had stunning artwork on.

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Adam Elbourne @drelbourne.bsky.social · 29/05/2026

... , we also knew letting it rip was bad for the economy as people stayed home rather than go out spending money and risking a deadly disease, yet we kept the same goal and approach as the first wave - everyone infected, but slowly. Why didn't we wait a couple of months for the vaccines?

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Adam Elbourne @drelbourne.bsky.social · 28/05/2026

There would be swear words and "I'm going home" if I had to work in temperatures over 35°C - don't get me started on 53°C... www.bbc.com/news/article...

Screenshot of bbc article reporting that a school in France was 53°C indoors.

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Adam Elbourne @drelbourne.bsky.social · 07/05/2026

Here's the CO2 on my last flight. Over 3000ppm (about 7% second-hand air) before take-off.

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Adam Elbourne @drelbourne.bsky.social · 30/04/2026

Adjusting for this version of the CPI, one dollar today is worth 6.8% of one dollar in 1945. So the dollar price of the Manhattan Project today would be about 15 times more than it was in WWII. fred.stlouisfed.org/graph/fredgr...

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Adam Elbourne @drelbourne.bsky.social · 18/04/2026

This is the way back. Intercity from Amersfoort to Gouda with one stop (open doors) in Utrecht with CO2 around 1200ppm. Sprinter from Gouda to Voorburg with CO2 about 700ppm.

Co2 measurement on Dutch trains. 1200ppm on the intercity. 700ppm on the sprinter.

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Adam Elbourne @drelbourne.bsky.social · 09/04/2026

Here's the population representation of the infectieradar. Dark bands represent participants in the infectieradar (blue = men; pink = women), light bands show the Dutch population. Infectieradar heavily overrepresents 40-79 year olds. Kids are almost completely absent. www.infectieradar.nl/results

Bar chart showing the age groups in the infectieradar compared to the Dutch population. Infectieradar radar is mostly 30-79 with hardly any children.

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Adam Elbourne @drelbourne.bsky.social · 20/03/2026

First time I've been to Utrecht in 20 years and there's a restaurant that's got me written all over it...

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Adam Elbourne @drelbourne.bsky.social · 14/03/2026

This is what happened to CO2 levels during my recent flight from Tenerife to the Netherlands. Firstly, CO2 levels in the airport (TFS) were good: close to 500ppm before security 650ppm after security. Then we boarded and CO2 shot up to 3200ppm. No surprise since the aircraft's ventilation system 1/4

Chart with CO2 levels during a flight. Initial spike to 3200ppm whilst we were on the gate, then fairly steady at 1700ppm for the remainder.

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Adam Elbourne @drelbourne.bsky.social · 10/03/2026

After seeing that Dango Ouattarra missed a Panenka penalty last night, I saw this figure on BBC. Given the sample size, the point estimates for success rates are actually quite similar and the 95% confidence intervals for the true probability for success all overlap.

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Adam Elbourne @drelbourne.bsky.social · 08/03/2026

Breakfast of (olympic) champions...

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Adam Elbourne @drelbourne.bsky.social · 07/03/2026

Whilst it's been great coming back to Teide National Park in Tenerife, it's been quite hard dealing with the low humidity. Outside of our hotel it's about 5-8% relative humidity during the day. It's playing havoc with my sinuses.

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Adam Elbourne @drelbourne.bsky.social · 07/03/2026

This is what happens when you go from running at sea level to running at 2200m above sea level.

Chart of my running VO2Max whilst on holiday on Tenerife. The first 5 points around 53 were at low altitude, the 6th point of 50 was at altitude.

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Adam Elbourne @drelbourne.bsky.social · 06/03/2026

You don't get views like these running in Voorburg...

Photo showing trail with mount Teide in the background

Mountain landscape in Teide national park

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Adam Elbourne @drelbourne.bsky.social · 06/03/2026

Very interesting post - my prior was it also must have something to do with covid - so I tried to look up what's happening in other countries. Here's the data from Eurostat, showing a majority of countries in the EU have higher healthy life expectancy in 2023 than in 2015. Hmmm.

Chart showing healthy life expectancy at birth for men for EU countries for 2015 and 2023. More than half are higher in 2023 than 2015.

Chart showing healthy life expectancy at birth for women for EU countries for 2015 and 2023. More than half are higher in 2023 than 2015.

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Adam Elbourne @drelbourne.bsky.social · 06/03/2026

@aranethome.bsky.social I was under the impression that my Aranet4 CO2 meter didn't compensate for altitude (not an issue living in NL). Today I took it out while walking in the mountains at 2100m and it said 425ppm (not 0.8×425ppm), just like at home. Is it using the pressure reading to compensate?

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Adam Elbourne @drelbourne.bsky.social · 04/03/2026

Good indoor air quality is possible. We sat inside a full restaurant this evening and CO2 only went above 550ppm when I was breathing on the sensor...

CO2 reading from my Aranet showing approx 500ppm for the 2 hours we sat in a full restaurant.

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Adam Elbourne @drelbourne.bsky.social · 04/03/2026

It's been raining all day in Tenerife today, so what better time to visit Tenerife's claim to the steepest paved road in the world. The steepest bit I measured was 35%, but there are some bits further up over 40% apparently. It took 30 minutes to get used to standing on level ground again.

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Adam Elbourne @drelbourne.bsky.social · 28/02/2026

This is something I never fully realised living in a flat country. I saw a few alerts for high wind speed (100+ km/h) for the Canary Islands, but it's not windy at all here. Amazing how the high mountains interfere with the airflow creating still areas.

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Adam Elbourne @drelbourne.bsky.social · 19/02/2026

Hmmm. On Tenerife you can stay in a hotel in the Volcano caldera. We're going in 2 weeks. I've just read there were 1400 earthquakes in a 2 hour period last week under the volcano 🌋. And there I was wondering what I was going to do with 3 vouchers for free toilet rolls...

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Adam Elbourne @drelbourne.bsky.social · 16/02/2026

If 700 is a steady rate like in the 1st screenshot below, then that's good ventilation. If it's just continually increasing and would keep going up like in the 2nd, then it's bad. It depends on how big the room is relative to the number of people.

CO2 measurement that levels out at 700ppm because the ventilation system is delivering plenty of fresh air.

CO2 measurement that hit 700ppm then kept increasing, indicating poor ventilation.

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Adam Elbourne @drelbourne.bsky.social · 28/01/2026

Als ik "Er zijn geen aanwijzingen dat deze varianten ziekmakender zijn dan eerdere (sub)varianten" lees, denk ik altijd aan de aanwijzingen van Russische invloed op de Brexit referendum...

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Adam Elbourne @drelbourne.bsky.social · 23/01/2026

For some reason my wife can't quite explain, she's been leaving €50 notes around on the bedroom floor... and the robot vacuum cleaner has sucked them all up. Should I be concerned?

The inside of our robot vacuum cleaner with a €50 note stuck in it.

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Adam Elbourne @drelbourne.bsky.social · 19/01/2026

Yes. I finally saw an aurora. With the naked eye it was just a hint of green in the sky.

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Adam Elbourne @drelbourne.bsky.social · 16/01/2026

It's like he thinks people don't know what expert means.

Definition of an expert. A person who is very knowledgeable in a particular area.

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Adam Elbourne @drelbourne.bsky.social · 12/01/2026

Tonight's vintage food from the back of the cupboard - popcorn with expiry date 6 May 2016. Better eat it before the 10 year anniversary arrives...

Popcorn label with best before date 06/05/2016.

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Adam Elbourne @drelbourne.bsky.social · 31/12/2025

Let's hope this pan-fried octopus isn't very nice - I'm not looking forward to recreating the metre high flames that came out of the pan (by accident) when I cooked it this time.

Unintentionally flambéed octopus, padron peppers and crackers with terrine.

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Adam Elbourne @drelbourne.bsky.social · 12/12/2025

Period life expectancy in the Netherlands is still below what it was before the pandemic (82.1 in 2019, vs 81.9 in 2024). If it had kept increasing at the same rate as in the 10 years before covid it would have been 83.5 years.

Chart showing period life expectancy in the Netherlands since 1950. After years of steady increases, 2020-2024 saw a decline.

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Adam Elbourne @drelbourne.bsky.social · 18/11/2025

... total should therefore be about 3.3%, right? Now look at the same week on infectieradar.nl. It's 2.3%. So I think that means the infectieradar number is just the self-reported positive selftests, not adjusted for false negatives. Do you agree?

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Adam Elbourne @drelbourne.bsky.social · 18/11/2025

Wait a minute! If I compare the figure from the paper (below) with the infectieradar data series (next post), then it looks like the reported time series is only reflecting the self-reported selftests. In the paper, selftests are 2.3% in week 9 of 2023, plus almost another 1% from the -ves. The ...

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Adam Elbourne @drelbourne.bsky.social · 23/10/2025

All week we've been told there would be high winds today, so I was really surprised at how calm everything was as I walked home from getting my covid jab at 16:00. Rubbish forecast, I thought. Then 30 minutes after I got home I looked out of the window and the trees were almost horizontal.

Wind map from WindAlert showing a very rapid switch from calm to storm.

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Adam Elbourne @drelbourne.bsky.social · 20/08/2025

Eind 2023 was de riool ongeveer 4100, nu 400. Eind 2023 was de piek in de infectieradar 3,6%, nu 0,3%. Dus de verhouding is dezelfde, toch?

Infectieradar had een piek van 3,6% in 2023

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Adam Elbourne @drelbourne.bsky.social · 12/08/2025

Hot weather = go later on my bike. Puncture = even later back. 20 minutes before sunset. At least all those holidays to Spain have prepared me for dinner at 22:00.

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Adam Elbourne @drelbourne.bsky.social · 23/06/2025

Living in the Netherlands, you can save a bucket load of money doing your cosmetics shopping in DM in Germany. However, they never had shaving oil... until today! I was happy until I looked at the ingredients when I got home. Am I going to enjoy rubbing 'annuus seed oil' on my face?

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Adam Elbourne @drelbourne.bsky.social · 22/06/2025

This halibut was good enough for Jehovah. www.restaurantholsterhof.nl

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Adam Elbourne @drelbourne.bsky.social · 31/05/2025

It definitely wasn't the plan at the start of May, but 1673km sets a new personal best for km in a month. Also @garminuk.bsky.social - there's 4 and 3/7 weeks in May, not 4 - February is the month with 28 days.