JOHN MAYER AND THE COMING SIMULACRA
WHERE DIGITAL AND ANALOG BEGIN TO BLUR
There’s a video making the rounds right now. John Mayer is sitting in his studio, switching between his amplifiers — his actual 1964 Fender Vibroverb, his Dumble Steel String Singer #002, his Two-Rock prototype — and a software plugin that a company called Neural DSP built by modeling those exact pieces of gear.
He’s playing. He’s listening.
He can’t tell which is which.
“I’d like to say that we went back and forth countless times, making tweaks until it was right,” Mayer said, “but the truth is that they pretty much nailed it on the first try.”
This is not a normal product launch. This is not just another thing to buy.
This is a philosophical event.
Pay close attention.
For decades, the DSP (Digital Signal Processing) industry has been striving to achieve this — evolving towards a moment where the real and the artificial are indistinguishable. It is a type of new frontier for guitar where acceptance among players has found a tipping point — furthering the gap between old school guitar forum boomers and younger Millennial and Gen Z generations who have grown up inside of some form of a digital world.
John Mayer is not pragmatic about gear. He does not cut corners. To put it bluntly, he doesn’t have to — he’s John Mayer. He owns what is essentially a museum — amplifiers that cost more than houses, rooms (plural) full of guitars, an assortment of pedals that rivals most collectors I know — a private collection curated over twenty plus years with the kind of obsessive care that borders on religious devotion. John knows what sounds good, and having played through his rigs on a few occasions, I can tell you, they are breathtakingly precise.
Neural DSP’s CEO Douglas Castro described John’s approach well: “There’s an intimacy to the way his rig responds — it breathes, it opens up, it carries emotion.”
And now that entire rig exists as software. For €199. Available to anyone with a laptop and an audio interface.
Too good to be true. Right?
I know many of you are thinking, “This is a cash grab,” or “Of course, he says he can’t tell a difference.” But let me remind you of one major factor here. John Mayer doesn’t need a few extra bucks from a software package. He doesn’t need another project to occupy his time. This moment is the result of a brilliant and thoughtful player who embraces technology and the possible conveniences it can bring.
This is a legendary guitar player living in the only timeline in human history that has allowed this to happen. His exact sounds — perfectly replicated in software form for him to access instantly. Convenient, accurate and painless.
This is more than hype.
Economists call this a Perfect Substitute — a good that can completely replace another good, where the consumer is indifferent between them. For decades, digital modeling was an imperfect substitute. Close, usable for sure — but the pros could always tell the difference. What Mayer is telling us is that the gap has closed, and he is on board.
This isn’t a typical gear argument about what’s better.
This isn’t about some fear that software is now replacing hardware.
It’s about the reality that we are standing in a moment in time that countless companies, design engineers, and players have wanted. Digital technology is now capable of replicating analog signals in a way that has never been possible before. The computer processors, the reproduction methods, the brilliant minds who are writing code and the basic economics of cost have all caught up to guitar’s analog reality. What started in 1932 as simply electrifying a guitar has now reached its highest technological peak. Ones and zeros sound perfect.
It’s about convenience — like the old photographer saying “the best camera is the one you have with you.” We can now have sounds in our computers that were impossible just a few years ago. We don’t have to lug around 1,000 pounds of gear unless we really want to.
It’s about possibility. With more access to previously unobtainable sounds and easier integration — the speed of ideas will increase. The ability to stumble into the previously unknown of tones is more possible for players than it has ever been.
But how did we get here? How did digital go from joke to rival to indistinguishable?
You have to understand permission.
The Lineage of Permission
I’ve talked about this for years: in guitar (and any technology), innovation moves through permission. Someone does something, and that act permits the next person to push a little further. On and on — down the road we go.
The first recorded distorted guitar tones were accidents — tube amplifiers pushed beyond their intended use — giving permission for the next players to pursue that sound intentionally — to turn the volume up just a little bit more. Bob Wills and the Texas Playboys guitarist Junior Barnard is a great example. The guitar was overdriven because his amp couldn’t hang with the volume of a massive Texas swing band — he had to keep turning up — overdrive was the result and then other players thought: that sounds good.
That permission flowed downstream to many more trailblazers of tone. Link Wray “Rumble.” The Kinks “You Really Got Me”. And then Keith Richards plugging into the then-experimental Maestro Fuzz-Tone for “Satisfaction” in 1965, and suddenly fuzz wasn’t a mistake. It was the sound.
Each step permits the next. The tape delay permitted the analog delay, and the analog delay permitted the digital delay.
Permission is linear, and it compounds.
Everything we do starts decades before we realize it — nothing suddenly appears from nowhere.
Digital signal processing has been following this same path for around forty years. BOSS and others created digital effects in the 80s — they were bad by today’s standards. Line 6 stepped into something that really worked in the late 90s by releasing the original POD, Flextone amps and modeler pedals. Premier Guitar later described the POD as instigating “a long-overdue liberation” from expensive vintage amps. Studio players started using it. Songs on the radio were recorded through them. Touring musicians were using them instead of amps. That permission flowed years later to Kemper, to Fractal, to Universal Audio, to Neural DSP.
The last 10 years have been a golden age for DSP processing. But there was always a ceiling. The players who really cared — the ones with the golden ears and the six-figure rigs — they stayed analog. They tolerated digital for convenience, but they knew. They could tell. They were still uncomfortable.
John Mayer was publicly one of those players until a few weeks ago, and we need to take note when the guy who is the unofficial spokesperson for expensive gear tells you he can’t distinguish the software model from the original.
The ceiling is gone.
That’s not just another step in the permission chain.
That’s the chain reaching its terminus.
Or maybe a new beginning.
The Precession of Simulacra
In 1981, the French philosopher Jean Baudrillard published Simulacra and Simulation, a favorite book of mine that has become quietly essential for understanding the world we now live in. His central idea is this: we have moved from a world where images represent reality to a world where images replace reality — and eventually, to a world where the distinction between image and reality dissolves entirely.
Stick with me. I can feel your attention span being tempted back into mindless scrolling. Don’t do it. I promise this is worth it.
Baudrillard describes four successive phases of the image. I’ll try to make this stick.
First, the image is a faithful copy. It shows the real thing as it actually is. A photo of your dog. A home video of a birthday party. The first amp modelers lived here — they were trying to capture what a Marshall or Fender actually sounded like. Everyone knew the copy wasn’t as exciting as the original, but it had its uses. You could practice at night. You could record a demo. The copy served the original.
Second, the image is a distorted copy. It’s still based on something real, but it’s been altered — and we know it. A touched-up photo. A highlight reel that skips the boring parts. Later amp modelers lived here: the Line 6 POD, early Kemper profiles. More useful than before, more convincing, but still not a replacement. You’d use it when you had to, not when you wanted to. The copy was getting closer, but the original still mattered.
Third, the image is a copy of nothing. It pretends to represent something real, but there’s nothing solid behind it anymore. Think about the mythical “Dumble sound” — discussed, analyzed, and worshipped so relentlessly online that the actual amplifier almost can’t live up to it. Or “vintage tone,” a phrase so overused it barely means anything anymore. Or the way people describe a Klon Centaur as if it contains some magic that no other circuit could possibly replicate. At this stage, people are chasing ghosts. The original has become an idea more than a thing.
Fourth, the image just... exists. It’s not copying anything. It’s not pretending to copy anything. It doesn’t need an original. Some amp modelers now include amplifiers that never existed as physical objects — digital from birth. There’s no “real” version to compare them to. Copies reference other copies. The fake becomes its own kind of real. At this stage, the question “but how does it compare to the original?” stops making sense. There is no original. There’s just the sound.
Baudrillard uses a story from Jorge Luis Borges to illustrate the endpoint. In the story, cartographers create a map so detailed, so perfectly scaled, that it eventually covers the entire territory it was meant to represent. In Borges’s telling, the empire declines and the map slowly rots, leaving only shreds in the desert.
But Baudrillard inverts it. In our world, he argues, it’s the territory that has rotted away. The map remains. “It is the map that precedes the territory,” he writes. “It is the map that engenders the territory.”
The model comes first. Reality follows.
We see this everywhere now — TV, film, online worlds bleeding into physical space. Go to Comic-Con and watch people dressed as characters from universes that never existed, holding weapons designed in software. The model came first. Reality is learning to follow.
Where Guitar Lives Now
So where does guitar sit in Baudrillard’s framework?
For most of the history of amp modeling, we were clearly in stages one and two. The POD was trying to reflect the sound of a Marshall JCM800. It got close. Everyone knew it wasn’t the real thing, but it was useful. A representation.
Kemper pushed us further. So did Fractal. The gap narrowed. By the time Neural DSP was capturing amps at the molecular level — preserving headroom, responsiveness, harmonic structure — we started sliding into stage three. The simulation was so good that you had to ask: what exactly is the “real thing” anymore? If the signal path is identical, if the harmonic content is identical, if the touch response is identical, what’s missing?
The answer used to be: the player knows. The professional knows. The guy with the ears and the experience can always tell.
John Mayer was supposed to be that guy. And he’s telling us he can’t tell.
The crazy part is that I believe him.
Reverse Simulacra
Here’s where it gets properly strange. Consider this scenario:
Steve is a guitarist. He records a track using the John Mayer plugin — the modeled Dumble, the modeled Two-Rock, the whole simulated rig. He posts it online. Tim hears it and thinks: that sounds incredible.
Tim has access to the real gear. He goes to a studio with an actual Dumble Steel String Singer, an actual vintage Vibroverb. He dials in settings. He plays. He’s trying to recreate what he heard on Steve’s track.
Tim is using the original to copy the simulation.
This is what Baudrillard means when he says the map precedes the territory. The simulation has become the reference point. The “real” amp is now being used to approximate the plugin. The hierarchy has inverted. The world is now upside down.
I predict that 2026 is the year the map begins to precede the territory in a very serious way for hundreds of thousands of guitarists — digital has finally gotten that good.
You can see this pattern everywhere once you start looking. Instagram filters establish a beauty standard, and then people get cosmetic procedures to look like the filtered version of themselves. The filter came first. The face follows. A movie depicts a city, and tourists visit the actual city, disappointed that it doesn’t match their favorite scene. The model preceded the territory.
In guitar, we’re just now arriving at this threshold. For decades, digital was chasing analog. Now there’s a generation of players who learned to play on Line 6 modeling products, UAD Amplifier pedals, and countless plugin systems, who can now know the Archetype: John Mayer sound, and who will someday encounter a real vintage Fender, Klon pedal, or Dumble amp and judge it against the software.
The copy becomes the standard by which we measure the original.
What We Might Lose
The philosopher Byung-Chul Han, in his book Non-Things, offers a different lens on what’s happening. His concern isn’t simulation — it’s disappearance.
“The terrestrial order is giving way to a digital order,” Han writes. “The world of things is being replaced by a world of non-things — a constantly expanding ‘infosphere’ of information and communication which displaces objects.”
Han is interested in what we lose when physical objects become digital information. “Things are points of stability in life,” he argues. “Objects stabilize human life insofar as they give it a continuity.”
A tube amplifier is a thing. It has weight. It warms up. It smells like hot glass and transformers. It sits in the corner of your studio and accumulates meaning over years of use. It’s a “counterbody,” in Han’s language — something that pushes back, that resists, that has presence.
A plugin is a non-thing. It has no weight, no warmth, no smell. It exists as information. You don’t own it the way you own an amplifier — you have access to it. When your subscription lapses or the company folds or the operating system updates, it’s gone.
Han offers a stark comparison: “We no longer inhabit earth and dwell under the sky: these are being replaced by Google Earth and the Cloud.”
Think about what that means. A physical map — a paper map — is a thing. It has creases where you folded it. Coffee stains. Notes in the margin. It ages with you. Google Maps is a non-thing. It’s more accurate, more current, more useful. It’s also completely ephemeral. It exists only as information, updated constantly, leaving no trace.
This is the shift Han is describing. Not simulation, but dematerialization. The world of things — heavy, durable, resistant — giving way to a world of non-things: weightless, frictionless, disposable.
Guitar culture has always been a culture of things. The weight of a Les Paul. The patina on a well-played Stratocaster neck. The way a vintage Fuzz Face looks with a few scratches on the red enclosure. We fetishize these objects. We tell stories about them. We pass them down.
And now we’re being permitted to let go of this reality more than ever before.
Where We Stand
I’m not here to tell you this is good or bad. I don’t think it’s either. It’s just what’s happening.
John Mayer can’t tell his Dumble from the digital model of his Dumble. A generation of players will grow up knowing the simulation before they ever encounter the original. The copy will become the reference. The map is now preceding the territory.
And somewhere, a guitarist will plug into a plugin, record something beautiful, and never wonder what they’re missing — because from where they stand, they’re not missing anything at all.
I know John well enough to know that he isn’t going to stop loving or using his amps and pedals because they now exist in the digital realm. He will still lug many of them around the world when it’s time to tour — but I do know this — he can now open his laptop, hit a preset, and have decades of his established guitar tones coming through the speakers in just a few seconds.
And you and I — we will never know.
This is the coming simulacra.
We’re already inside it.
If you enjoyed this, consider grabbing a copy of my new book Made On Earth For Rising Stars: The Story Of Electro-Harmonix. Every pre-sale matters and tells the publisher and distributor that people like you want books like this.




This is really good. You have a great presence of mind, and I’ve come to enjoy this side of Josh Scott more than ever. I read this while eating lunch and drinking a Coke Zero. It’s not the real thing, but a simulation of Coke and better. I’m drinking simulacra.
Josh, thank you for this beautifully constructed piece — the permission lineage, the Baudrillard framework, the Han counterpoint on things versus non-things. You've traced the trajectory with real sophistication.
But you stopped at the rig.
The technology you're describing has no natural boundary at the amplifier. The same modelling approach can move up the signal chain: the guitar's resonance, the pickup's voice, the string's behaviour under specific finger pressure. And then — the player themselves. Mayer's behind-the-beat phrasing. His vibrato characteristics. The way he attacks differently depending on harmonic context.
These are all signals. They can all be sampled.
You've declared the ceiling gone for amplifier modelling. But in today's world, is the performer really an irreducible original that anchors all the copies? Baudrillard's framework, taken seriously, doesn't grant that assumption. If we're in stage four — copies referencing copies, the question of "the original" dissolving — why would the artist be exempt?
We're both engineers who think about tech, culture and society. I'm curious where you see the boundary. Is it technical — something about human performance that's in principle non-modellable? Is it cultural — we could model the performer but the meaning of "performance" would resist substitution in ways that "amplifier tone" didn't? Or is there no boundary, and the philosophical event you're describing is bigger than this piece acknowledges?
Not a challenge — a genuine question. I'm currently asking these in the AI space. Where does the philosophy take you when the signal chain reaches the hands?