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Sure, we probably should have harvested this onion long ago. But its ball of flowers attracts many pollinators. And the sphere illustrates the effect of light and dark on peacock butterflies in a single picture.

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These days, the oregano* in our garden is abuzz with different kinds of bumblebees, flies, and butterflies. On yesterday's garden pictures, you see how peacock sit with their wings closed when the sun is out (left; notice the sharper shadows) while they open them as soon as it gets cloudy (right).

* I only realized this is oregano just now by looking up the translation; in Dutch we call this plant 'wilde marjolein', which means 'wild marjoram'.

Lively dream 

It felt good and the sight was beautiful. It was stormy, so I needed to use my muscles to keep circling in the same area. Then I noticed someone standing on a balcony. I didn't want to alarm them, so I decided to let the wind take me away. I found myself surrounded by clouds, quite far from my starting point but unable to tell how far, since I couldn't see the ground. I realized I wouldn't be strong enough to fly back even if I wanted too. Then I woke up, feeling so utterly lost. 2/2

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Lively dream 

It started at a reception, chatting to a few people. After I turned away briefly, the others had joined a larger circle I really didn't want to be associated with. So, I went outside. It was nighttime, with a moonlit cloudscape over a group of buildings in a valley. Some lights were on behind curtains in tiny windows I could see from afar. I decided to fly a little (as one does), since there was nobody who could see me. 1/2

I got a parcel tracking message that started with

Dear customer <(>,<)>

and I feel you, embarrassed sparrow.

I had the pleasure to evaluate some Master theses from Physics and Space Studies. The latter included a questionnaire for children in primary school. The most adorable result was that most children don't know what their parents' job is. 🚸

People value being able to log in to a platform, connect with who they want to connect with, consume the media they enjoy, find the information that’s relevant and then be gently nudged off the platform in a way that fits their time management goals. Social media could have a healthy, meaningful place in people’s lives. But that’s just not the way it’s being designed right now.

Custom lists (prompting users to organize their contacts in lists, and then consume content from those lists instead of the algorithmically curated main timeline) have a huge value - something I already realized when #Twitter started to move too far from a chronological timeline and started inserting trending tweets and other shit.

Spotting conflict and prompting users to resolve their discrepancies in private instead of the public timelines can also make social media much less toxic, since 1-1 interactions are more personal and less likely to be as abrasive as public conflicts where each of the parties feels the urge to "defend" their side in front of others.

We also need to clearly condemn the social media that are exploiting and abusing our psychological reward mechanisms (the "keep digging this endless bucket and you'll find what you're looking for") to create addiction cycles similar to those of created by substance abuse and gambling. Social media should prompt users to set the amount of daily time that they expect to spend on them, and then gently nudge them off if they spend too long, instead of rewarding them when they spend all of their time doom scrolling.

Most of the people feel a sense of disgust and revulsion when they realize that they've spent too much time on social media instead of doing something productive in real life. We don't want to use social media that make us feel bad by design and steal our time from family, friends and work. If those social media don't change their approach, then their usage needs to be discouraged just like we discourage tobacco usage.

I made this Illustration to have sun fun. I have a lot of client work and I needed something to clear my mind.

Today, I'm going to give two very different talks. The first one is on the history of electron spin as seen through the lens of philosophy of science (for an audience of theoretical physicists). One hour later, I will give a philosophical introduction to inductive inference and confirmation theories (for an audience of psychologists). And all that in 30°C. 🌡️
Some days, being a philosopher of science is exactly as wild as it sounds. 🌀😆

Guten Morgen. Kennt ihr den Großen Schillerfalter? Ich hoffe zumindest dass er es ist. Ich habe gestern einen lila blauen Schmetterling gesehen. Als ich durch die Kamera gesehen habe war er weg. Stattdessen saß da ein Orangener. Zwei Schritte rückwärts, anderes Licht, wieder lila. WOW.

This wiki is about #permacomputing, a radically sustainable approach to computing inspired by permaculture.

doctor who fans: "it's implausible for everyone on Earth to just forget about the various Dalek invasions or things like the entire planet being moved"

me: *the only person wearing a mask in a crowded supermarket*

During the Vietnam war, Grothendieck taught math to the Hanoi University mathematics department staff, out in the countryside. Hoàng Xuân Sính took notes and later did a PhD with him - by correspondence! She mailed him her hand-written thesis.

What was it about?


we grew inside
familiar mammals
who carried us, tiny animals,
with unspeakable love

we remain outsiders
for the rest of our lives
in strange tongues


interesting psych question looking for answers 

I usually associate dreams with good sleep: if I remember vivid dreams, I know I'm sleeping well.

Recently, after a hectic and sleep-deprived week, I suddenly had this weird phase during my unusual afternoon nap, where I'd wake up every 5-10 minutes or so having had a very vivid (and not necessarily brief) dream.

That got me and my friend thinking: is there a connection between deprivation and the stage? Refs welcome! :boost_requested:

Can the hive mind help?

I have a nice, short proof for a theorem about conics. Unfortunately, I don't know how well the theorem itself is known. I'm sure it can be found in some book written in the last 200 years, but... 🤷
Does anyone know the following statement?

Given two non-degenerate conics in the projective plane. There are four lines which are tangent to both conics. They touch the given conics in four points each. Then there exists another conic, which runs through these eight points.

stabbing scorched faces
traces of summer teardrops
curious salt mine

for (3-in-1 catchup)

my cocoon is a mess
creativity is brewing
caterpillar soup
new flight patterns
time to paint
butterfly wings


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