You seem to have two or three internally-consistent worlds that that keep popping up on your challenges. Would it be possible to get the...
Well, I do have a pet universe. Nicknamed the Amalgam Universe because of the central(ish) location Amalgam Station.
1) Wormholes exist, but they’re actually passages into a nearly-parallel universe where time is a physical phenomenon. Large enough time pockets cause one-way wormholes which enterprising colonists travel down [post Seeding] to make a world in their own image.
Regular wormholes do not have large temporal pockets, though smaller ones can cause damage to ships.
People of all kinds use wormholes because vanilla space travel is only possible at CTL speeds and wormholes are a convenient shortcut. For example: Amalgam Station is technically in the Cuidgari solar system, but it’s quicker to travel through three wormholes than it is to take the half-Galactic-Week cruise through regular space.
2) Quantum entanglement communication exists.
BUT you can’t do that through wormholes, so courier drones also exist. You can beam a message in local space with some lag, but if you want things done quickly, you need a system of drones. We’ll start with a basic backwater kit of four.
Let’s call them A, B, C, and Geoff.
Drone A is in real-space on one side of the wormhole. Drone Geoff is on the other side. Drones B and C are on the inside, waiting for a comm signal.
I’m on side A and I want to send a message to the station Geoff services, so I send a data pack to Drone A. Drone A pops through the event horizon, passes its message to Drone B, and quickly comes back. Drone B beams its message to Drone C, which pops through the wormhole boundary to give the message to Drone Geoff. Geoff then passes it to the station.
In real-space, that message could take weeks to get there. Even with quantum entanglement working in our favour.
Needless to say, busier interchanges have more than four probes. And don’t get me started on the ‘crossroads in Hyperspace’…
3) Humans are insane.
It’s been scientifically proven. And if you still doubt, try carrying on a sensible conversation with any of the United Fellowship of Terran Planets’ ambassadors. Especially Ambassador Shayde.
4) Time is money.
Literally. To avoid confusion, monetary time is usually spelled with capitals. Because subjective time is never a reliable way of measuring things.
And to prevent capitalistic variations of fascism, companies are legally responsible for the care and upkeep of their employees. The Committee for Cogniscent Rights is a very powerful entity and lawsuits are more expensive than dental plans.
5) Galactic law can periodically enforce local-system law.
If your local system can be proven to be inhumane to various sections of cogniscent life, you’d better believe that that the Cogniscent Rights folks will be on your doorstep in a heartbeat. With the big guns.
But, that said:
6) Space and land weaponry has reached the point where war is inefficient.
You still find the occasional bunch of people who still think shooting at things is the way to win a conflict. They’re smacked down with remarkable ease.
7) Maturity is measured in responsibility, not age.
This often leaves lots of adult humans with a 'keeper’ of some sort to assist in Galactic-perceived deficiencies.
8) Gengineering is scary.
See: Cleaners, Augments, Uplifts and the entire population of a Terran colony called B'Nar.
9) There are crossroad stations everywhere.
Stations in hyperspace have spinning sections because artificial gravity doesn’t function in hyperspace. Anywhere that some shipping lanes cross paths gets a station. Even if it’s a piddly little place where pilots can stop in and get a grease burger and fries.
10) Remember that thing with upkeep? That includes nutrition.
Which means that organic, naturally-sourced, individually-cooked, processed and barely-processed foods are dietarily non-guaranteed and therefore 'unsuitable’ for proper dietary and nutritional control.
Thus, there’s Nutri-food. A chemically-synthesised artificial foodstuff that can range from RDI baggies of greyish slop to synthetic renditions almost indistinguishable from the 'real’ thing in looks, texture and flavour.
This has not in the slightest prevented restaurants from selling Unsuitable Food, and proudly displaying a placard that warns patrons that they consume such at their own risk.
11) Lots of places that appear in my prompts are in this universe. And lots of the people, too.
Rael has his own short story. Shayde will get hers in good time. Hwell Barrow and Ax'and'l are my go-to comedy duo. Lyr Marken is a security officer in the JOAT district of Amalgam, and works largely in the Elemeno. 'Sherlock’ is her boss and security chief for the entire station.
Established worlds already in existence in my universe are, in no particular order: Greater Deregulations (often denoted by their physical place in the galaxy), Beach, B'Nar, Hevun, Meeyahn, Earth/Terra (dur), Amity, Ghiisham, Fedora, Nufurria, Tu'att, Maq'eck, Vanel, Trudai, Numurrica (deceased), Britania, Argo, Vardia and Gethsemone (famous for its magnificent gardens).
12) You also get dumping grounds, which then become scavenging spots.
One beings’ trash, etc. etc.
I dunno about you, but I’ve had enough. I will answer any specific questions about my various realities though.