From my first post, my journey into Bitcoin, just 2 days ago, I am starting out with my second one, fueled by all your feedback. Thank you so much; I love the community.
I want to share something about Germany and Bitcoin from various perspectives, as far as I can discern. I'd like to ask for a favor: if I forget to mention any perspectives, please let me know. This is my first time experimenting with various text formatting options and incorporating pictures into the text, so please be gentle. I will often use the term DACH, representing Deutschland, Austria, and Confœderatio Helvetica (Switzerland). They all speak German, so often things can be related here. Today, I'll start with #1 The BTC Network Security. I'm considering different parts following: Bitcoin markets, Bitcoin technology, Regulatory, Social Media, Activism, Bitcoin in academic Science.

1.0 Germany and Bitcoin - Network Security

  • 1.1 Nodes
  • 1.2 Energy Situation & Mining
  • 1.3 Core and Lightning Development

1.1 Nodes

The first thing we look at here must be Nodes. The most detailed data I found is from bitnodes. Of course, we don't know what happens behind Tor, but we could assume that the distribution could be at least close to the open ones. In the first picture, you can see the global distribution of total Nodes.
You can see that Germany looks pretty strong here, and even ASNs (Autonomous System Numbers) providers like Hetzer, Telekom, or Vodafone show strength. Frankfurt am Main (773,000 people) is by far the city with the most Nodes worldwide, which is impressive as it has just 20% of the inhabitants of Berlin. In numbers - close to 0.87 Nodes per 1000 inhabitants. I think you can clearly see the difference in the scale of density.
CountryInhabitants in MillionDensity - Nodes per 1000
Netherlands17.80.08
US3350.03
Germany84.60.06
Frankfurt0.770.87
Worldwide81540.006
Here is a different picture of the distribution from the DACH region to the BTC network with a focus on reachable Nodes:

1.2 Energy Situation & Mining

Mining is strongly dependent on the energy price and the further use of thermal energy output. I don't know how familiar you are with the German power network, but in short words, it's messed up. So let's take a brief look here. We closed nuclear resources, and we will close coal distribution in the upcoming years. Don't get me wrong; I don't like coal at all, but we are doing this without having an alternative for the power demand and making regulatory bases for alternative energies harder from year to year. Resulting in a change from a net power export country to a net import country, mostly relying on coal or nuclear power from France and Poland. You can follow up the switch in the past years with the following charts:
To conclude this, we have a lot of renewable energies, making the countrywide distribution day and night more unstable. We shut down nuclear, a stable distribution of power, the same for incoming coal. So we need more net import (mostly coal energy), resulting in a much higher price.
World, look at us Germans; our way makes so much sense to stop climate change!! (shaking my head in disbelief)
I could go much deeper here, but I'll leave it at this for now.
To conclude this point, mining in Germany doesn't matter much on a worldwide scale, but with 40 cents per kWh, it only makes sense if you have too much solar power and use the energy for mining instead of contributing it to the power network (the government is giving you something like 7 cents per kWh here). If I will write about BTC technologies in DACH there is a lot to add to the topic of mining but right now, when it comes to network security it doesn´t play a significant role.

1.3 Core and Lightning Development

As I am not really into this topic, I can just name two people here, but I think the topic definitely belongs to network security. We have a lot of programmers with high academic degrees here in DACH. I would not be surprised, if the anonymous distribution to the programming part is much more significant. If you keep tabs on these two individuals, you'll uncover numerous fascinating interviews and insightful English podcasts. Both of them are exceptionally forthright and articulating some issues with clarity.
Conclusion I look forward to your criticisms and feedback, and please tell me if you want me to prolong this story with other perspectives. It consumed around 4 hours to compile all the data. At first i wanted to deep dive in every topic with that post, but was not feasible. :D
What are your thoughts on Germany's impact on network security? I find myself a little bit astonished; delving into this topic at such a profound level was also new for me.
Other devs worth mentioning:
Christian Decker - Lightning Developer @ Blockstream Oliver Gugger - Lightning Developer @ Lightning Labs
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218 sats \ 1 reply \ @ek 28 Jan
Frankfurt am Main (773,000 people) is by far the city with the most Nodes worldwide, which is impressive as it has just 20% of the inhabitants of Berlin. In numbers - close to 0.87 Nodes per 1000 inhabitants. I think you can clearly see the difference in the scale of density.
I think it's because a lot of data centers are in Frankfurt. I don't have numbers on this but I believe it makes sense to put data centers in Germany near one of the largest internet exchange points worldwide:
DE-CIX (Deutsche Commercial Internet Exchange) is an operator of carrier- and data-center-neutral Internet Exchanges, with operations in Europe, North America, Africa, the Middle East, India and Southeast Asia. All DE-CIX activities and companies are brought together under the umbrella of the DE-CIX Group AG.[4]
The DE-CIX internet exchange point (IXP) situated in Frankfurt, Germany,[5] is one of the largest IXPs worldwide in terms of peak traffic, with throughput of 14.40 Tbit/s in December 2022.
-- Wikipedia, DE-CIX
DE-CIX is the second largest internet exchange point according to public data: List of Internet exchange points by size
However, I am confused since the list groups multiple cities together. So not sure on which place the IXP in Frankfurt is.
I would not be surprised, if the anonymous distribution to the programming part is much more significant.
Yep, developers and people affiliated with bitcoin from Germany seem to care a lot about their privacy (myself included to a degree decreasing over time). I have two more examples but I am not sure if I can mention them here since as mentioned, they care about their privacy, lol
I look forward to your criticisms and feedback, and please tell me if you want me to prolong this story with other perspectives. It consumed around 4 hours to compile all the data. At first i wanted to deep dive in every topic with that post, but was not feasible. :D
Yes! Keep these coming, I am from Germany myself and it's still very interesting to me to read this. :)
I am sure that this post didn't get a lot of replies is just an outlier. I revisited this post because @cryotosensei linked to this post here. The last time I saw it I didn't have time to read it and then I forgot about it :/
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Thanks for the extra inputs. And for tagging my name. Makes me grin because the extra thirty seconds I took to paste @Bitcoin_Bootcamp’s post was worth it haha. Goes to show that Proof of Work is worth the while
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Fascinating. Here I am sipping my black coffee in tropical Singapore and learning so much about a country on the other side of the world.
I thought your writing was tight and focused. I sensed your restraint in not wanting to dwell much on your attitude towards your country’s changing energy consumption. You hinting at it, nonetheless, made this more engaging because you are sharing yourself haha
I guess your post just triggers to more questions in my mind. Why are there so many Frankfurt citizens involved in nodes? Are they culturally different from the rest of Germany, despite speaking the same language? Also, how are BTC miners pivoting in response to recent policy changes? Maybe you can cover the social aspect in another post.
Write on!
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