MojalandBehind the Blue Sky 日本語English

MOJALAND / 01

Behind the Blue Sky

Bluesky is an app where you write short things and other people see them. It looks like other social apps.

But what runs behind the screen is built differently. This opens it up one part at a time. The parts that are not working get written down too.

1 — THE BIG DIFFERENCE

You can move house and take the whole account

On an ordinary social app, what you wrote and the list of who follows you both sit inside one company's computers. Quit because you dislike the app and you leave all of it behind. The connections to your friends break there too.

Bluesky is different here. Your posts and your list of follows are built to be luggage you can carry. Move to a different company's app and the luggage moves with you. Same name, same followers.

Think of it as owning the boxes rather than the room. If you do not like the landlord, you pack the boxes and move.

2 — WHAT RUNS BEHIND IT

Not one company but four jobs

Between you pressing post and someone seeing it, the writing passes through four places. On an ordinary app one company does all four. Here they can be pulled apart.

1

Your store PDS

Where the writing is kept. This is where the luggage lives. You can rent space in Bluesky's store, or set up a computer and run your own. Moving house means moving this.

2

The sorting office Relay

Goes round all the stores and calls out that new writing has appeared. Like a postal sorting office. It does not choose anything or delete anything. It just gathers and passes on.

3

The assembler AppView

Takes the flood of writing and puts it into a readable shape: joining replies into conversations, counting likes, making things searchable.

4

The app Client

The screen you touch. There is an official one, and there are ones other people made. The same account gets you into any of them.

PDS Your store Official app Another app A photo app Open any of them and it is the same stuff
The store and the app are separate, so swapping apps does not move your things. If one app shuts down, your posts are still there.

3 — HOW NAMES WORK

You get to pick your own address

A name here looks like alice.bsky.social. The interesting part is that you can use your own website address as your name. A school could hand out names like tanaka.school.jp.

Whether the name is genuine is checked against a marker left on the website itself. So an official badge from a company matters less. The name is the proof.

Behind the name sits a number that never changes. Change your name and the number stays. So your followers do not get lost.

4 — CHOOSING WHAT YOU SEE

You pick who does the recommending

On other social apps, a company's computers decide what you are shown, and you cannot switch it off.

Here, anyone can build an ordering and publish it. Those are called feeds.

Following Posts from the people you follow, newest first, nothing mixed in. This one is there from the start.

Feeds other people made Only cat photos, only science, only Japanese. Whatever rule the maker chose. Do not like it, remove it.

People who attach warnings (labelers) The job of marking frightening images or false claims can also be swapped out. Not one company deciding alone what gets hidden.

The screen is plain. No adverts flowing past. No numbers glowing at you. Five minutes in you have seen all of it. That is the part of Bluesky that is easiest to feel right now.

5 — PROMISE AND REALITY

What is said, and what is done

Everything above is the drawing. A drawing does not mean the building went up that way. Side by side, then.

PROMISE

Anyone can build a store. Stores stand scattered all over the world.

REALITY

Almost everyone rents space in Bluesky's store. Very few have built their own. What is possible and what people do are different things.

PROMISE

Anyone can run the sorting office and the assembler too.

REALITY

Handling all the world's writing takes big machines and a lot of money. Few can. This is the thinnest point right now.

PROMISE

If the company goes strange, you just move, so it is fine.

REALITY

Large numbers of people moving at once has not actually happened yet. The exit is built. It has not been tested.

PROMISE

Your data belongs to you.

REALITY

"Belongs to you" means you can carry it, not that you can keep it secret. Posts are normally readable by anyone and can be collected in bulk. And there are no private accounts.

PROMISE

A square nobody controls.

REALITY

Bluesky is a company, and people put money in. How it will earn is still being worked out. For now, "a company's service with an exit" is the accurate description.

PROMISE

People of many different minds gather.

REALITY

There are far fewer people than on the large networks, and the topics and views lean. You could also call that quiet and comfortable.

6 — ADDED LATER

So why is nobody using it

Someone reading this far might be thinking: if it is that good, why is nobody around me on it.

The answer is not "it is hard." It is "nothing is wrong yet." If the notebook you have still has pages, you do not buy a new notebook. That is all.

On top of that, four things are missing.

You cannot move alone. The luggage travels; your friends do not. Told that you can leave any time, people still do not move if nobody they know is on the other side. Being allowed to change schools does not help if your friends stay.

There is nowhere to hide. In Japan a great many people use accounts locked to a chosen few. Bluesky has no such thing yet. What you write is, as a rule, readable by anyone. This is due to be fixed next year.

Nobody is posting the notices. Train delays, weather, disasters, shop and event announcements. In Japan these live on social media. Almost no company or public office does that here yet. This is the biggest hole.

One company draws the line on what is not allowed. What gets hidden is decided by Bluesky the company, on a foreign standard. Not necessarily how it feels here.

The third one is what this place is actually good at. Anyone posting notices needs to show they are genuine, and here your own website address becomes your name (section 3). You can put up your own sign. And nothing has to be given up: post to both.

7 — ONLY HERE

"Everything arrives, and the bad things do not"

Say briefly what people want from social media and it comes out as this. A place where you find out what you want to know and do not end up feeling bad.

Those two do not usually stand up together. Make everything findable and the unpleasant comes with it. Try to remove the unpleasant and what you wanted goes too. Lift one, the other drops.

There is a clear reason this never gets fixed on ordinary social media. The gathering and the choosing are done by the same one company. And that company earns more the longer everyone stares. Feeling bad is not a loss to them.

Here, the two can be split. The sorting office carries everything. The choosing is a separate job, and you pick who does it. So "everything arrives" and "the bad things do not" can stand at the same time.

In postal terms: everything reaches the letterbox, and you decide who sorts it before you read.

No other social network can copy this. Copying it breaks how they make their money.

That said, hardly anyone has built the sorting job in Japanese. What exists is mostly playful: fortunes, badges you can earn. The job of taking on "what gets hidden" is still small. And when something goes wrong the complaints travel to the company rather than into building an alternative. The most important spot has not grown in.

8 — IN SHORT

So what is good about it

Drop all the difficult parts and two things are left.

The screen stays out of the way. No adverts, readable in time order. You can tell what you are being shown.

There is a way out. When you stop liking it, you can leave with your things. Your reason for staying stops being that you cannot go.

How real that is has not been settled. The machinery is there and much of it is unused. It is at the stage where you cannot know without trying.

TERMS

Words used here

AT Protocol
The set of agreements Bluesky is built on. Keep to them and anyone can build something that connects.
PDS
The store your posts are kept in. This is the thing that moves when you move house.
Relay
The sorting office that goes round the stores, gathers new writing and passes it on.
AppView
The job of assembling gathered writing into conversations and search.
DID
Your number, which does not change when your name does.
Handle
The name shown on screen. Your own website address can be used.
Feed
An ordering of posts. Anyone can build one; you choose which to use.
Labeler
Whoever attaches warnings to posts. Also your choice.

NEXT

There are three more

That is the end of the machinery. The other three take up separate questions. Read them in any order.