Writing on paper does not throw hard to decipher errors though

The cursive thing is US-only. The speed highly depends on the type of notes you’re taking (with or without sketches, with or without equations, etc.).

On the other hand, taking notes with a lot of equations is cumbersome with a computer, and straightforward with paper and pen. I also can’t do any serious maths without paper, e.g. playing with equations. It flows naturally with pen and paper, it is just horrible with a computer, unless you actually defer the equation solving to the computer using dedicated symbolic math software which is very useful, but that’s not always what you want to do.

I don’t think so for the reasons other have mentionned. But also, climate change is going to get us to favor low-tech ways to do things. I don’t think that the over-reliance on technology is sustainable in the long run. I wouldn’t even be surprised personnally if there were to be a global collapse of internet connectivity. It seems very fragile to me: the optical fibers in the ocean can be easily damaged, the datacenters can run out of power, political change in some countries may lead to connection to the outside to be severed or unusable. That is one of the reasons also why I don’t personnally trust big platforms to store personal data that I wish to save.

That is because bottle of water are overpriced in restaurants, as are all drinks. So this is their way of making money when the meal alone isn’t enough for them to be profitable. I don’t like this, they should charge the meal what they need. In France they are required by law to provide free tap water when requested.

I remember reading once (perhaps from UFC Que Choisir, a French consumer association), that filtering decreased the quality of water (in France), because the tap water quality was very good and controlled, your filter not so much, and it may develop bacteria.

To answer the original question, I always drink tap water in France, and have never once boiled it. I know people who filter it. I sometimes put it in the fridge if I want it colder. I’ve also drank tap water directly in the UK and in Germany. I would in any European country.

Do we know if it is really used infrequently, or does it just happen that it is not used during the events pictured on screen? There is no dialog where a character claims that it is used infrequently?

We know from the Morn episode that it can remain liquid for quite some time too.