When I first thought about being physically in a Zero G environment, I thought of having fun. For some, this means many different types of recreational activities.

One thing I pondered was handball inside a cube. Indeed, many games involving a ball, with a target in each of the six walls becomes a common conception, given the circumstances.

I thought of the size of the room, and gave it a modest 20x20x20, a little tight for handball, but representative enough for a little problem I discovered which technically could apply for any room larger than the stretched out length of a person (about 7 feet)

The problem is... What happens when you get "stuck" in a space where you cannot touch any of the walls? If you've ever seen the video clips of astronauts on the shuttle or the ISS, doing summersaults in mid air, then you can see my point of "stuck". If you will notice the surroundings in both the shuttle and the ISS, you will see that you pretty much can touch a wall easily within these spaces, they are not larger than people. I do firmly believe this was on purpose.

The old videos of SkyLab looked to me like that space was just a little bit bigger than it should have been, but then, with trained astronauts understanding this problem, they could make the living space twice the length of a person, because these individuals would know enough to "push off" to get a firm grip on the other side, rather than "accidentally" float to the middle and be stranded there for 5 or 10 minutes.. or maybe and hour or two.. It depends on how fast they are moving.

Also, no astronaut is ever alone anymore. If stuck, any other person can push off towards them with enough force to carry them both to a wall.

In a space based Hotel, with Zero G all over the complex, The idea of a spacious lobby giving spaces of 40x40x40 is now an absurd concept, unless people have a way of moving in this free space, other than Newtons second law, "any action, causes an opposite and equal reaction". Throwing things away from you to get to a wall is not the way to do things.

Instead, we can see a small belt worn which possibly produces variable magnetic fields (electromagnets), and the Hotel is designed with some ferrous metals in the deeper part of the sub structure, so that these "flying belts" will work. the interface might be something like a trackball on the belt, or even some type of VR setup.

If some simple, foolproof method is NOT obtained to deal with the "stuck factor" then the design of the Hotel changes greatly, looking more like a habitrail, then a stately Hotel in Space (LEO or otherwise).

This concept alone of being stuck, necessitates the development of movement control, even in an area designed to "lose it in free space". Everyone will want to come down sometime, and they will want to know that either they can control it, or someone else can.

In my designs, I will assume personal directional control has been established, because without it, I would have to make designs which many might find "claustrophobic" and not what we all dream of in a Zero G environment.. and that is of flying.

We all "feel" it in our souls, ESPECIALLY those that think often of venturing into space, or like zero G here, even if for fleeting moments. We envision starting from the floor, and floating effortlessly some 30 feet "above" where we were. And many times, we do it by thought alone.. or a little flapping (laughing inside, I did, anyway)

This is how we envision a "true" space adventure, totally Zero G when we want it, but pulled to the nearest wall (at least) if not an exact location, when we desire it. Just like an EVA for a s huttle astronaut, each person would consider pretty necessary, a "flying belt" for their personal space control.

Given these things, I see every surface as a floor, that people can use. However, we take so much for granted with gravity. We put something down, it stays there, and our drinks stay in our glasses. IF we bite something that drips (juicy hamburger), it drips to the plate.. it doesn't fly off at whatever angle it started at (which it would in zero G). when we sit in a chair, or lay on the bed, gravity pins us there.

There is another matter to consider in a Zero G Hotel, and that is for those that get severe "vertigo" or motion sickness. For some, other than time and holding still, an "artificial gravity" might be a great remedy to have on-board. A large centrifuge, spinning slowly, which gives some amount of G force, so the person can "get their bearings"..

Many issues will come up during this Space-Travel-Evolution. I think in the end, people will enjoy Zero G as a "fun" thing to do, but will prefer to travel mostly with the real gravity feeling they are used to...

These are but a few of the things you can imagine in a space environment, and there are many more.....