It's not clear how the map is built and if it is possible to contribute content. Only in my area there are dozens, possibly hundreds of castles that do not show in the map. Every city and many towns have one. Several hilltops have a castle or fortress too.
How do we design such apps? Let's rule out age attestation (to allow only some age ranges) or scan of content because they are orthogonal to apps. What are the design patterns that prevent adults to meet kids? No messaging?
It makes sense to use the left hand as phone holder to be free to use the right hand to do some other activity, example: I will have my breakfast while reading HN.
However I usually keep my phone with my right hand and scroll with my right thumb. Furthermore I am writing this comment by swiping with my right thumb. I can swipe with my left thumb but I'm not as accurate.
> Greece, Italy, Portugal, and Slovakia all copied it.
Italy did not copy it. Italy does have a lottery similar to that one but a small change made it very ineffective.
Instead of printing a code on every ticket, people have to register on a web site, get a code, show the code to the shopkeeper that will add it to the ticket. The result is that we had 25 million lottery tickets in 2024 for a population of more than 50 million people.
Claude Pro with Sonnet 5 at $20 per month for a limit I never reach is OK. I'm using it 3 days per week full time.
I'm also experimenting with DeepSeek 4 and it seems on par. Its API price is much cheaper and it's top up, not a subscription. I still didn't consume the $2 I loaded on my account sometimes in June. However they about to charge double price in what seems to be China's morning and afternoon.
Piaggio also designed the Ape (bee) https://en.wikipedia.org/wiki/Piaggio_Ape a 3 wheel tiny pickup. It was hugely popular, but of course not as much as the Vespa because of the smaller market. I still see some of them especially in country areas.
Of course if we had a black hole in a lab (or one in a convenient orbit) we could run all sort of experiments, but which experiments exactly? We will start by throwing things at it and watch, obviously, but that's unimaginative. What are the smart experiments?
I really have no idea. I work only with small or at most medium sized companies. All of them put their code on a git server they don't own. All of them are concerned about AI companies looking at their code. They hope that at least they won't train their models with their code if they pay.
I think that the reasoning is: they trust the git company (whatever it is) not to sell their code. They are worried that their code goes into a model and somebody else could ask the model "write a service like XYZ" and it will regurgitate their code.
After they uploaded their code to private repositories on GitHub, Bitbucket etc since forever?. They trust GitHub not to read their code but they don't trust an AI from Microsoft not to read it? It would be schizophrenia
I experienced myself at least two of those points. In different words:
Never teach to people that did not ask you to teach them. They will not listen to you. They will forget. They will not thank you. Time wasted. As a corollary, I'm sorry for most teachers at school and even at universities.
You can change your mental state. A friend of mine told me about 3 years ago "When X happens I can't change the way I react" and she was not necessarily reacting in a good way. My answer was "Your mental state is the only thing you can control." She stopped talking and started thinking. I don't know if it had an effect. Changing the way one reacts to a stimulus takes time and effort but it can be done.