There's a tradition in programming that almost nobody talks about, even though almost everybody knows it.
The first thing you write — the very first thing, before you understand what you're doing, before you know if any of it will work — is two words.
Hello world.
It's not clever. It's not optimized. It doesn't solve a problem or prove a theory. It just appears on the screen, blinking quietly, and it tells you something that matters more than you think: the connection is live. Something is listening.
I've been thinking about those two words for a long time. Not as code, but as a human act. Because if you strip away the syntax, what you're really doing is the oldest, most terrifying thing a person can do. You're stepping into a space where nobody asked you to speak. You're opening your mouth without knowing if the room is empty. And you're saying the only thing that's ever really mattered:
That's not a line of code. That's a prayer. That's a first day of school. That's a hand raised in a room full of strangers. And for a lot of us — especially those of us who spent our lives feeling like we were broadcasting on a frequency no one else could hear — it might be the most courageous sentence we ever say.
So we built something around it.
The Hello World Challenge is exactly what it sounds like — and nothing like what you'd expect.
There's no entry form. No judging panel. No algorithm to impress. The ritual is simple, and it's specific:
- Look into a camera — or write it down, or record your voice, or type it into the void. Whatever feels like yours.
- Say “Hello world.”
- Share one small truth about yourself.
- Post it with #helloworld.
That's it. That's the whole thing.
This is not a performance. It's not about going viral or getting discovered or building a brand. It's not about being inspirational or eloquent or camera-ready. It's about being seen — just once, just for a moment, just as you actually are. And in being seen, giving someone else permission to be seen too.
This is the question people ask first, and it's the right question, because we've been trained to perform our lives instead of living them. So when someone says tell me something true, we freeze. We reach for something impressive. Something worthy.
Forget worthy. A truth doesn't have to be heavy. It just has to be yours.
Here's what truths sound like:
- “I rehearse conversations in my head before I have them. Sometimes I rehearse them after, too.”
- “I'm 42 and I still don't know what I want to be when I grow up.”
- “I can tell you the track listing of every album I owned in high school, but I forget why I walked into a room.”
- “I love people. I just need to recover from them sometimes.”
- “I talk to my dog like she understands me. I think she does.”
- “I didn't get diagnosed until I was 38. I spent my whole life thinking I was broken. I wasn't.”
- “I cry at commercials. The ones with the dogs. Every time.”
- “Some days the bravest thing I do is leave the house.”
- “I'm really good at pretending I'm fine. I'm working on not doing that anymore.”
- “I still sleep with the light on. Not because I'm scared of the dark — because the dark is too quiet.”
Do you see it? None of those are grand. None of them are trying to be a TED Talk. They're just — real. They're the things we think but don't say, the things we carry around like small stones in our pockets, worn smooth from years of quiet holding.
Your truth might be funny. It might be tender. It might be the most mundane thing in the world — and that's exactly what makes it sacred. Because when you say the ordinary thing out loud, you discover that it was never ordinary at all. It was just unspoken.
Here's what I want you to imagine.
Thousands of people post their truths. They trickle in at first — a few brave souls, a few shaking hands, a few voices that crack on the second sentence. And then more. And then more. From kitchens and cars and quiet bedrooms. From cities you've never been to and lives you'll never live.
And you start scrolling through them.
Not all of them will land. That's fine. But some of them — some of them will stop you cold. A stranger in another city, another country, another life entirely, and they said the thing. Your thing. The thing you've been carrying quietly for years, the thing you thought was yours alone, the thing you were almost sure made you strange.
And there it is. In someone else's mouth. In someone else's handwriting. In someone else's trembling, imperfect, fifteen-second video.
That's when a challenge becomes a movement. That's when ignition becomes a flame. The distance between strangers collapses — not because you're the same, but because you're the same kind of human. The kind that feels too much, or thinks too loud, or loves in ways that don't fit neatly into the shapes the world provides.
You were never the only one.
This challenge is launching in partnership with Autism Live and The Art of Autism — and that's not an accident. These are communities that already understand what it means to be wired differently. To see the world through a lens most people don't even know exists. To spend your whole life translating yourself for rooms that weren't built for you.
This is the right soil for this seed.
But I want to be clear about something: this challenge isn't just for autistic people. It never was.
It's for anyone who has ever felt like a stranger in their own life. Anyone who has smiled through a conversation while quietly drowning. Anyone who has Googled “is it normal to feel this way” at two in the morning. Anyone who has ever stood at the edge of a room and wondered if there was a version of them that could walk in like it was easy.
Being autistic taught me something I didn't expect. It taught me that the things that make us different are often the things that make us beautiful — and that lesson doesn't belong to any one diagnosis or identity or community. That lesson belongs to everyone.
We're starting here because this is home. But the door is open, and it was never locked.
You don't need a studio. You don't need a ring light or a script or a good hair day. You don't need to rehearse this, even though I know some of you will — I know because I did, too.
You just need a camera. A breath. And one true thing.
Look into the lens, or look at the page, or look at whatever space feels safe enough to hold your voice. And say it.
Hello world.
Then say the thing you've been carrying. The small one. The funny one. The one that makes you feel most like yourself, even if “yourself” is someone you're still getting to know.
Say it. Post it. Let it go.
Because somewhere out there, someone is scrolling, and they need to hear it. Not because your truth will save them — but because it will remind them that they have one too.
The world is listening. It always was. It was just waiting for you to speak.
Say hello.
#helloworld
Mark McFillen is an autistic writer, filmmaker, and the creator of the Hello World Challenge. This piece was originally published on The Art of Autism (theartofautism.com) in conjunction with the Hello World Challenge launch on Autism Live.