Better yet, demand loudly to get a refund. When they say there is nothing to refund, insist that you have an email confirming a booking.

How the f**k do we have functional AI that speaks like a human and solves general problems on the level of a university student, but somehow household chores are still done with tech that was invented 50-100 years ago?! Why isn’t there just a hole in my kitchen counter where I can dump dirty dinnerware, pots, pans; the machine sorts it out, washes it, and returns it to the cupboard? Why doesn’t my washing machine sort by color, wash, dry, fold, and stack my clothes? Why do I still have to clean surfaces in my house by manually rubbing a wet sponge at them for hours?

I’ll tell you what I think: inequality. Women did house chores, men invented shit that was fun and useful to them. Maybe as the world moves, hopefully, toward more equality we will find that people who shares their time between chores and inventing stuff will start to actually tackle the problem of simplifying boring chores.

https://youtu.be/jI2zxBAIepI

While a broad concept, in the context of your question, science is a metod to derive knowledge from observations.

Alternatives to the scientific method is to guess or to obtain knowledge from others. (Most other ways I can come up with, e.g. “religion” can still be sorted under these two.)

Obtaining knowledge from others is great, but may not always be available, and the quality of the knowledge derived this way depends on the reliability of the source.

For the other alternative, every sensible metric shows how science is a better method than guessing to derive knowledge.

But, “speedy” relative to what? Relative to the walls of the room your are inside? What if you are in a falling elevator? Relative to the rotating surface of the earth? To the center of the solar system? “Relative to the portal” is the only answer to that question that makes sense.

How can it not be b? Every situation in the Portal games is already exactly like this, but with the portal fixed to a slab that moves with the rotation of the Earth, whereas in the drawing the portal moves as the sum of earth rotation + the movement of the train.

Treating the question seriously, I think it is easy to think the one person is the right choice, because it just seems like less of a mess to deal with. However, I also think the end result is that you will never feel safe in your home again. You will always second guess if every squeak you hear is yet another person who somehow have made it into your house. This is the path towards slowly descending into madness.

As a different, more techy, solution that can work depending on the people you collaborate with, is to use a hosted Git service for collaboration (if you want to stay completely open source, a self-hosted GitLab).

Then, change your publication workflow to write in Markdown, ReST, or one of the other ascii formats that previews correctly, and set up your CI to render the documents automatically into, e.g., pdf:s using a converter. There are all kinds of converters from Markdown/ReST -> docs, presentation, etc. formats that are as competent - if not more so - than the usual office suites. This setup offers both online editing in the GitLab instance and offline by local cloning of the Git repo.

The side effect is that this system very seriously records and preserve your document history. You can see exactly who, at what point, changed, added, and removed things. For some types of documents, this can be very important.