muhaaa
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1 year ago
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on: Launch HN: Airhart Aeronautics (YC S22) – A modern personal airplane
I love the idea & I love to fly but building and operating air planes is a shitty business.
Technology wise we could have fly by wire fully automated planes, vtol, and helicopters easily (at least in limited areas first). The problem is not tech it's regulation, insurance, backwards compatibility and scale.
Sadly scale is the killer. You would need a Toyota for airplanes but your market to sell is tiny. You just cannot spread your dev costs over huge volumes of planes. I have seen aero dynamic designs which are comparable to fuel efficient cars but travel at 200mph. But it's very expensive and risky to build a company around it.
What you might be able to break into is Garmins market but hard! Maybe new markets like electric planes or vtol.
I hope I am wrong and you are right. I wish you guys succeed bc GA aviation is stuck in 1970s.
muhaaa
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1 year ago
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on: Europeans have more time, Americans more money. Which is better?
In Soviet Union people had lots of time too. Especially waiting in line...
muhaaa
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2 years ago
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on: Intermittent fasting linked to 91% increase in risk of death from heart disease
Such a weak study with a click bait result and media blows it completely up bc they need the eyeballs.
muhaaa
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2 years ago
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on: UK becomes first G20 country to halve its carbon emissions
When UK exported its industry to China and imports the stuff it needs from China then yeah the CO2 emitted in UK halfed. When you add the CO2 emissions happing in China which are related to UK consumption then the number wont be impressive at all.
muhaaa
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2 years ago
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on: YouTube wants to get you watching more news from 'authoritative sources'
Why is competion in the media space through small & independet news outlets a bad thing? If I realize a media outlet provides low quality or baised news, I choose not to watch it. Only Orwellian authorities do not like that!
muhaaa
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2 years ago
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on: Bootstrapping a SaaS Business in Germany: How I did it
muhaaa
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2 years ago
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on: Bootstrapping a SaaS Business in Germany: How I did it
Why a GmbH in Germany? Sorry, that was not a good idea and will costs you money and nerves to fix that. Now you are locked into Germany even if your business can be operated from everywhere around the globe. If you move the GmbH out of Germany you have to pay GmbH fair value ; fair value according to German Tax Authority! Do a Holding GmbH + Operative GmbH to accumulate wealth tax efficiently. You could have your company on your name (Personengesellschaft) and operate from across the globe, especially with cheaper taxes and living expenses OR even found a GmbH-like company in a cheap tax haven and do vacation in Germany.
muhaaa
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2 years ago
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on: Copycat nutrient leaves pancreatic tumors starving, may inform cancer treatment
Agree. Ask your doc if you can fast during chemo roughly 1 day before until 1 day after chemo (depends on chemo drugs). Fasting mitigates somewhat chemo side effects like water retention, vomit and damage to healthy cells. During fasting fat burning / ketosis at least stresses cancer cells.
muhaaa
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2 years ago
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on: Bayesian Flow Networks
Learning and compressing is closely related. When compressing, you extract systematic rules and unsystematic parameters from the original data. When you learn you do the same but unsystematic parameter become noise. If you throw the noise away you get a lossy compressor.
muhaaa
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2 years ago
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on: Critique of Lazy Sequences in Clojure
same here. in practice its almost never an issue. Always I try to use transducers first. Where its not possible, I ask is the data very large then use lazy sequences else mapv.
I am using clojure for my side projects & hustles. If the project is quick and dirty who cares how its implemented. If project evolves to more serious product, I should re-write anyway and optimize the critical code paths.
muhaaa
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2 years ago
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on: We put a distributed database in the browser and made a game of it
I have a very interactive app with limited data use <10MB. Right now its a lots of different API calls to sync state between server and multiple clients. But if I have a distributed sync protocol (that works), I can replicate the state on each cient and server by tunneling the sync protocol to the server and back. I have reduced a lots of api complexity. My react UI just subscribes to the data changes in the synced DB. Similar concept impelmented pouchdb & couchdb but its a bit outdated.
muhaaa
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2 years ago
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on: We put a distributed database in the browser and made a game of it
I thought tigerbeetle distributes the db on web clients? I skimmed through the docs and cannot find how to design a web app with tigerbeetle like the game
https://sim.tigerbeetle.com/
muhaaa
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2 years ago
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on: Building a Better Book Club: A Strategy for Efficiently Ingesting Nonfiction
6.2. Write a summary, use Anki droid to learn key ideas.
muhaaa
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2 years ago
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on: Taxonomy of Procrastination
muhaaa
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2 years ago
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on: Taxonomy of Procrastination
Jim is the collective around you. Jim is a mirror of your position in your social environment. Jim is always looking for clues about your position in your social environment. Jim is looking which role you are playing in society right now.
Jim is there when you are a baby and picking your nose. Jim is reflected in the face of your mother when you wanted to eat the big fat booger and her warm and smiling face turned into an angry and disgusted grimace. There is Jim. Jim turns from an observed behavior as baby to an internalized behavior as adult. If you want to change your behavior there is Jim.
Jim is at the edge of your comfort zone. Jim is at the edge to the unknown. If you venture into new behaviors you will suck at it and Jim will tell you to go back. Jim says its comfortable where you came from.
Watch 1977-1983 Star Wars (which is full of eternal wisdom). Luke fought his Jim before he could fight Darth Vader. https://www.youtube.com/watch?v=_qiDuHCKSc8
The same as Luke fought his Jim, we all have to fight our Jims. And as Luke kills dark-side Darth Vader, light-side Anakin Skywalker is reborn. I told you. Star Wars is full of eternal wisdom. The same will happen to you. As you fight, your dark-side you will uncover your Jims light-side. Because Jim is the mirror image of you.
It is your damn RESPONSIBILITY to create the best Jim there is. It is your damn JOB to fight Jim everyday. It is your RESPONSIBILITY and JOB to uncover his light-side one tiny bit each day. Jedi, its our job to save the galaxy from the dark-side. Its worth to die for!
muhaaa
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2 years ago
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on: Offline is just online with extreme latency
IF you can solve data sync for your application, local first is simple & easy to develop and feels very responsive for users. Lots of business applications are now in that range. 10MB of ERP data is like 1 year of operating a medium sized company is the equivalent of a picture of my cat.
muhaaa
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3 years ago
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on: Ask HN: Do you think ML model weights are copyrightable?
Not a lawyer.
1. EU yes / US not so easy. Under EU law, content of a database can be copyrighted. I argue the weights of ML model are like the content in a database. Under US law the arrangement of data needs to be creative / original. Creative / original assumes a human expressing himself. Maybe the design of the ML model, selection of training material and selection of hyperparameter justify a copyright claim on a database of model weights.
2. Yes as resources were used to create it.
muhaaa
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3 years ago
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on: Temporal Programming, a new name for an old paradigm
You want to try temporal programming? Try clojure: immutable values, immutable & persistent data structures, software transactional memory.
You need a data base with full history (transaction time), try datomic. Additionally if you need full history AND domain time (bi-temporal) included in your data base, try or xtdb.
muhaaa
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3 years ago
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on: Researchers: World can reach 100% renewable energy system by/before 2050
The major driver of renewables costs is investment. The wind blowing and sun shining does not cost anything.
Sadly regarding renewables, there is no twice cheaper available right now. Maybe through innovation somewhere in the future. Right now only hydro power is close to fossil fuel energy density. But it is only available in a few places around the world.
muhaaa
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3 years ago
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on: Researchers: World can reach 100% renewable energy system by/before 2050
The beauty of energy density is that you pay energy to get energy. You pay 1 kWh to get out 4 kWh in renewables. Thus you have 3 kWh available for society. Oil provides 9 kWh for society per 1 kWh investment. Nuclear provides 19 kWh for society. In developed economies we are about 12 kWh for society per 1 kWh investment. Thus going to renewables will cut society wealth by a factor of 4! The energy is not gone but it is redirected to maintain renewables infrastructure. If you live in the US rn, your renewables living standard will be equivalent to Mexico rn.
Money is quasi-energy. The petrodollar is not a joke. It literally binds the US dollar to barrels of oil. As everybody needs energy / oil, everybody needs US dollars.
Technology wise we could have fly by wire fully automated planes, vtol, and helicopters easily (at least in limited areas first). The problem is not tech it's regulation, insurance, backwards compatibility and scale.
Sadly scale is the killer. You would need a Toyota for airplanes but your market to sell is tiny. You just cannot spread your dev costs over huge volumes of planes. I have seen aero dynamic designs which are comparable to fuel efficient cars but travel at 200mph. But it's very expensive and risky to build a company around it.
What you might be able to break into is Garmins market but hard! Maybe new markets like electric planes or vtol.
I hope I am wrong and you are right. I wish you guys succeed bc GA aviation is stuck in 1970s.