Does Any of This Matter?
Senior’s Guide to Caring About Cosmic Nonsense**
I read a lot. And I read about a lot of different things. Most of my time is spent with mystery and suspense, but every so often I take a break from fictional detectives and wander into real topics—economics and finance, technology (AI and robotics have been my recent rabbit holes), and the occasional deep dive into the sciences. That’s how I stumbled onto Ethan Siegel’s Starts With A Bang. Somewhere along the way, I discovered he wrote a book called Treknology: The Science of Star Trek from Tricorders to Warp Drive—and that alone should tell you the man’s mind is an interesting place to visit.
What amazes me, every time I read him, is the way astrophysicists talk about events that happened eons ago as if they happened this morning, and then predict what will happen eons into the future based on a few years of current observations. It’s fascinating, sometimes baffling, and often entertaining. But it also makes me ask a basic question:
Who cares?
It turns out: maybe you should.
Astrophysicists Are a Little Weird (And I Mean That Affectionately)
Let’s be honest: it takes a special kind of mind to look at a flicker of light from a galaxy 50,000 light-years away, measure that flicker for six months, and then declare, confidently, “Well, obviously this star exploded 20,000 years ago, and obviously it’ll collapse into a neutron star in another two million.”
Confident predictions about a future none of us will live to see?
Sounds like a great job.
But here’s what makes astrophysics “weird” in the best possible way: even though they only observe a tiny slice of the universe’s timeline, the laws they rely on are stable, predictable, and universal. Gravity works the same here as it does around a black hole. Fusion works the same in our Sun as in a star being shredded by a supermassive black hole. Light obeys the same rules no matter how far it travels.
Astrophysicists aren’t predicting that star—they’re reading the rules that apply to all stars.
And that is where things start to matter.
Everything We Know Is Old News
When you look at a galaxy, you’re seeing the past.
When you look at a nebula, you’re seeing the past.
When you look at a “current event” in deep space, it has already happened.
Light from the Andromeda Galaxy takes 2.5 million years to reach your eyes.
Everything you see is history.
So what’s the point?
Here’s one answer: the universe is the greatest time-machine ever built. The night sky gives us a record of what happened long before the first human walked upright. And if we learn how that history unfolded, we gain insight into how our own story might evolve.
Not tomorrow.
Not next year.
But eventually.
Why Bother If Nothing Out There Affects Us?
This is the question a lot of people—especially seniors—quietly ask:
Why should we care about galaxies colliding or black holes swallowing stars or quasars roaring to life?
It doesn’t change the price of groceries.
It doesn’t help with arthritis.
It doesn’t fix the Wi-Fi.
Fair enough.
But that’s not the point.
Here are the real reasons this “cosmic nonsense” matters.
- The Universe Shrinks Our Problems (In a Good Way)
When you’re reading about two galaxies that have been slowly crashing into each other for hundreds of millions of years, your dentist appointment tomorrow suddenly feels manageable.
Astrophysics offers a perspective we don’t get anywhere else:
we are tiny, and that’s liberating.
In a world that constantly pressures us to take everything seriously, the universe whispers:
“It’s okay. Relax. You’re part of something enormous.”
- It Reminds Us That We’re Lucky to Be Here at All
Every element in your body—carbon, calcium, iron—was forged inside a star that exploded long before Earth existed. We are literally made of stardust.
Astrophysics is the science of understanding the rare and improbable chain of events that gave us:
- a stable Sun
- a friendly orbit
- the right chemistry
- water
- time
- and eventually, people reading blogs on the internet
It’s the story of everything that made life possible.
That’s worth appreciating.
The Whole Universe in Seven Rules
Motion + Conservation + Thermodynamics + Light + Quantum + Gravity + Particles
Physics looks complicated, but almost everything in the universe follows seven big ideas:
- Motion
How things move, accelerate, collide, and orbit.
(Newton gave us the rules, planets confirmed them.) - Conservation
Energy, momentum, charge — nothing disappears. It only changes form. - Thermodynamics
Heat flows from hot to cold.
Machines wear out.
Entropy always increases.
(Or as we all know: time goes in one direction.) - Light & Electromagnetism
Electricity, magnetism, radio waves, Wi-Fi, microwaves, starlight — all one unified story. - Quantum Mechanics
The strange, probabilistic rules of the tiny world.
Tunneling, superposition, entanglement — and the chemistry that makes life possible. - Gravity
Not really a “force” at all — more like curved spacetime.
Explains black holes, falling apples, and GPS accuracy. - Particles
Quarks, electrons, neutrinos, the Higgs boson — the building blocks of all matter.
And Here’s the Fun Part
Most of what we now accept as “standard physics” wasn’t proven in a laboratory.
It was discovered or confirmed by astrophysicists — the people who look at stars, galaxies, explosions, black holes, and the early universe.
- Light bending around the sun? Astrophysics.
- Black holes? Astrophysics.
- Quantum rules inside stars? Astrophysics.
- Dark matter, dark energy, neutron stars, gravitational waves? All astrophysics.
Without those wonderfully weird astrophysicists, we’d be decades behind in understanding the universe.
They test the theories no Earth-bound laboratory can.
-
It Tells Us We Might Not Be Alone
You don’t need to believe in little green men to find this interesting.
The math is simple:
If there are hundreds of billions of galaxies, each with hundreds of billions of stars, each with who-knows-how-many planets…
The odds that we’re the only life in the universe are microscopic.
Every time we discover a new exoplanet, a new habitable zone, or a new signature of biological chemistry, the story gets more intriguing.
We don’t know if life is common or rare.
But astrophysics is the only discipline trying to answer the question.
And I can’t think of a question more worth asking.
-
It Pushes the Boundary of What Might Be Possible
A surprising number of science-fiction technologies started as astrophysics thought-experiments:
- warp drives
- wormholes
- teleportation
- time dilation
- matter-energy conversion
- antimatter propulsion
Most of them won’t happen in our lifetime.
Some will never happen at all.
But a few—understanding gravity better, using solar sails, advances in energy, or long-term space travel—might eventually shape humanity’s future.
If no one dares to look at the impossible,
the possible never grows.
-
It Gives Us a Reason to Stay Curious, No Matter Our Age
Many seniors feel like “learning” is something younger people do.
Astrophysics disagrees.
The universe doesn’t care whether you’re 25 or 85.
It doesn’t stop being interesting because you’ve retired.
And you don’t need a physics degree to enjoy the wonder of it.
Curiosity is one of the last things we get to keep.
The universe is a good place to exercise it.
So… Does Any of This Matter?
If you measure life by what affects your grocery bill or your blood pressure, then no—black holes and galaxy mergers won’t help you much.
But if you measure by:
- wonder
- perspective
- curiosity
- humility
- the joy of learning
- or the simple pleasure of asking questions no one can fully answer
then astrophysics matters a great deal.
It reminds us that the universe existed long before we arrived and will continue long after we’ve gone. And yet, somehow, in the cosmic middle of all that, here we are—thinking, reading, learning, and still capable of being amazed.
In a life that moves quickly and a world that feels chaotic,
a little cosmic nonsense might be exactly what we need.
