Greetings, fellow configuration of atoms observing this message on a glowing rectangle.
The Hook
Have you ever looked up at the night sky and felt... small? Like, uncomfortably small? Not "I shrunk my jeans in the wash" small, but "I am a teeny tiny creature living in a tiny chunk in the space of a small family called solar system which itself is a tiny thing inside our milky way galaxy and there are tons of galaxies in our universe and some theories even suggest there can be multiple universes" small?
Have you ever wondered how we're quietly sitting on a rock that's revolving at about 1674km/h hurtling through space at 30km/s around a giant ball of fire, and we're out here worried about likes in an instagram post?
Have you ever thought about the fact that there are more stars in the observable universe than grains of sand on every beach on Earth? And we really think we're the ONLY ones here? Just us? Alone? In ALL of that?
Take a pause, take your time to make an attempt to imagine and comprehend that then answer, do you still think we are alone?
This isn't some conspiracy theory im cooking. This is math, logic, and a little bit of existential crisis. Let's talk about why we are almost certainly not alone in this universe.
The Background
So here's how most of us were raised to think about this. Earth is special. Humans are special. We're the chosen ones, the main characters of the universe. Everything else out there? Just pretty lights for us to wish upon.
And honestly, that's a comforting thought. You look at the moon, you feel poetic. You see a shooting star, you make a wish. The universe feels like a backdrop, like a really expensive screensaver that exists just for us.
Most people go their entire lives without seriously questioning this. We eat, we sleep, we scroll, we repeat. The universe is "out there" and we are "in here" and the two don't really overlap in our daily lives.
Yeah, we all do that. No shame. I did too. Let's fix that!
The Illusion
But have you ever actually done the math?
Like, have you ever sat down and thought about the sheer, incomprehensible, brain-melting SCALE of what's out there?
The observable universe is about 93 billion light-years across. Our galaxy alone, the Milky Way (great name, horrible branding, sounds like a chocolate bar), has somewhere between 100 to 400 BILLION stars. And the observable universe has about 2 TRILLION galaxies.
Let me say that again. TWO!! Trillion!!! Galaxies!
And we think Earth is the only place where something interesting happened? That's like walking into the world's biggest library, reading one page of one book, and going "yeah, this is all there is to know."
The Deep Dive
Okay, here's the nerdy part. Buckle up.
The Drake Equation. Back in 1961, a dude named Frank Drake (not the rapper, different Drake, equally iconic) came up with a formula to estimate the number of active, communicable civilizations in our galaxy. It factors in stuff like the rate of star formation, the fraction of stars with planets, the fraction of planets that could support life, etc.
Now, the equation has a LOT of variables we can't pin down precisely. But even with the most conservative estimates, the numbers are wild.
Let's do some napkin math. Even if only 1% of stars have planets (the actual number is way higher, likely most stars have planets), and only 1% of THOSE planets are in the habitable zone, and only 1% of THOSE develop life, and only 1% of THOSE develop intelligent life... you're still looking at potentially millions of civilizations just in our galaxy.
Millions. In ONE galaxy. Out of two trillion.
Then there's the Kepler Space Telescope data. NASA's Kepler mission found that roughly 20% of Sun-like stars have an Earth-sized planet in the habitable zone. That's about 11 billion potentially habitable Earth-sized planets in the Milky Way alone.
Eleven. Billion. Candidates. And we're the only ones who got lucky? I like the odds 😂
And we haven't even talked about the fact that life on Earth exists in absolutely INSANE conditions. We've found organisms living in boiling volcanic vents, in Antarctic ice, in nuclear reactor cooling pools, in literal acid. Life doesn't need a cozy apartment with good lighting. Life is that one friend who can sleep anywhere.
If life can thrive in conditions we thought were impossible on our OWN planet, imagine what's cooking on planets we haven't even looked at yet.
The Brutal Truth
Let me put this in terms we can all understand.
The conditions for life, the basic essences, (carbon, water, energy & time) these aren't rare ingredients. They're EVERYWHERE. We're not running on some proprietary, Earth-exclusive lifeOS. The building blocks of life are literally the most common elements in the cosmos. Carbon, hydrogen, nitrogen, oxygen. The universe has been distributing these packages since the beginning. In addition to all these, recently researches have found the presence of water and oxygen in our neighbouring planet, Mars, also hints of life that existed in the past, (though not conclusive) yet still, 🤯
The Question
So if the ingredients are everywhere, the kitchen is infinite, and we already know the recipe works at least once... why would we assume no one else is cooking?
The Problem
Here's where it gets spicy. If the math says there should be tons of civilizations out there, then WHERE IS EVERYBODY?
This is called the Fermi Paradox, and it's been haunting scientists since Enrico Fermi casually dropped "where is everybody?" over lunch in 1950 (the most iconic lunch question ever asked, and yes, it was literally over lunch).
There are a bunch of possible explanations, and none of them are particularly comforting:
The Great Filter theory suggests that there's some catastrophic barrier that prevents civilizations from advancing to interstellar levels. Maybe it's behind us (we already passed it, yay us). Maybe it's ahead of us (oh no).
The Zoo Hypothesis says advanced civilizations know about us but are deliberately not making contact. We're basically a nature documentary to them. Some alien is watching us fight over parking spots and going "fascinating, absolutely fascinating." And honestly? Fair.
The Dark Forest Theory (shoutout to Liu Cixin for this terrifying gem) argues that the universe is like a dark forest where every civilization is a silent hunter. You don't announce your presence because anyone who hears you might destroy you first. So everyone stays quiet. Every civilization is just out there going 🤫.
Now, obviously I'm not saying aliens are definitely out there binge-watching our reality TV (though if they are, I hope they started with the good seasons). But the fact that we have MORE explanations for why we haven't found them than evidence that they don't exist... that says something.
Even if I'm wrong about all of that. Even if the math is off, the estimates are too generous, and life really is some cosmic fluke that only happened once... that's STILL an extraordinary claim. Saying we're alone in a universe this big requires more proof than saying we're not. The default assumption, statistically, logically, should be that life exists elsewhere. Proving we're alone is the harder argument.
The Solution
So here's where I land on this.
After the math, the logic, the existential spiral, and the mild panic, here's the actual take:
We are almost certainly not alone. The universe is too big, too old, too full of the right ingredients, and too indifferent to our ego for Earth to be the only place where atoms got bored and decided to become alive.
The reason we haven't found "them" yet isn't evidence of absence. It's evidence of distance. The universe is incomprehensibly vast, and we've been seriously looking for about 60 years. That's like searching for a specific fish in all the world's oceans and giving up after checking one pond for an afternoon.
We're not alone. We're just early. Or far away. Or maybe not listening on the right frequency. But the math doesn't lie, even when our feelings want it to.
The Conundrum
So does that mean little green aliens are definitely out there waiting to say hi? 👀
The Conclusion
Honestly? Probably not in the way movies show it. No dramatic landings on the White House lawn. No "take me to your leader" moments (also, who would we even take them to? We can't even agree on that among ourselves).
The truth is probably way less cinematic and way more profound. Life out there might be microbial. It might be so advanced it doesn't even register us as intelligent. It might communicate in ways we can't detect with current technology. Or it might be in a galaxy so far away that by the time their signal reaches us, both our civilizations could be long gone.
And that's the beautifully terrifying part. The universe doesn't owe us contact. It doesn't owe us answers. It just exists, impossibly large, impossibly old, doing its thing whether we understand it or not.
But knowing that we're probably NOT the only ones doing this whole "being alive" thing? That's not scary. That's kind of... comforting. We're not the only ones confused. We're not the only ones looking up. Somewhere out there, something might be looking at their sky and wondering the same thing.
And I think that's worth sitting with for a moment.
The Actionables
- Look up more often. Not metaphorically, literally. Go outside tonight. Look at the stars. Let yourself feel small. It's humbling and weirdly therapeutic.
- Read about the Fermi Paradox. Seriously, it's a rabbit hole that'll keep you up at 3 AM. Start with the Wikipedia page, end up questioning your entire existence. Standard Tuesday.
- Stop thinking of space as "empty." It's full of chemistry, energy, and potential. The vacuum of space is the most happening place we know of, we just can't see the party from here.
- Support space exploration and science funding. Every telescope, every rover, every satellite is one more step toward answering the biggest question humanity has ever asked.
- Stay humble. We're one species on one planet in one solar system. Having a strong opinion about the entire universe is like a goldfish having a strong opinion about the ocean.
- Share this article with someone who thinks they're the center of the universe. They'll either have an existential crisis or finally gain some perspective. Either way, you win. 😂
Let's Talk About It
Think we're alone? Think the aliens are already here? Think I've completely lost it? I want to hear YOUR take. Drop me a message and let's yap about the cosmos.
That's a wrap on this cosmic existential spiral. If you made it this far, I genuinely appreciate your time and patience; it means more than you think. Feel free to check out the other writings if you haven't already, or come back later when there's something new cooking.
Thank you so much for reading and visiting. Your support keeps this corner of the internet alive. Until next time, stay curious, stay kind, and keep looking up. If you want to add something, feel free to send a message here.