Over 700 years. A tower originally built in 1310. The island it’s on is an exclave that is technically part of Hamburg.

600k seems a bit too much. That’s a fairly large city.

Obviously it depends (for work when I can work on the train I am okay with longer journeys) but there has to be some sort of non-linearity involved, I agree!

I turned myself into a potato Morty.

If enough people think that a simple “yay” is funny enough to be upvoted near the top it probably is. If it is not upvoted it is not really a problem. Sure they are low-effort comments but in the age of ChatGPT, you can also write low-effort answers that are much longer. It is the voter’s responsibility, not the moderator’s, to separate interesting posts from non-interesting ones.

Blockchains have the property of being append-only, so a blockchain is precisely what makes it impossible to delete transactions. That being said, in a distributed system, once the message leaves trusted servers, it is obviously also impossible to delete it.