The Jack of Focus-Fire Trade
On Renaissance Men, Sling Bags, and the Quiet Radicalism of Doing One Thing
A high school English teacher once handed me a cognomen I wasn't entirely sure I deserved. Renaissance Man, she said, with the particular authority of someone who has watched enough sophomores to know which ones are performing breadth and which ones actually have it. I filed it away alongside the other things adults tell you about yourself at fifteen — simultaneously too embarrassed to believe it and too flattered to discard it entirely.
A couple of years earlier, the Traveller tabletop roleplaying game had introduced me to a related but distinct concept: the Jack of All Trades. In Traveller's skill system, Jack of All Trades isn't an insult. It's a specific capability — the ability to attempt anything, to bring functional competence to bear across domains without the paralysis of specialization. The shadow of the full phrase, master of none, is conspicuously absent from Traveller's rulebook. The system treats breadth as a survival skill, not a consolation prize.
I've been living somewhere in the overlap between those two ideas for four decades. Into what might generously be called the extended adolescence of middle age, the passions and pursuits haven't narrowed the way people suggest they're supposed to. Music production and live sound. Writing and systems thinking. Tabletop worldbuilding and technology infrastructure. The cognitive itch that arrives when a problem in one domain turns out to be the same problem wearing different clothes in another. The English teacher saw something real. So did the Traveller rulebook.
What neither of them gave me was the third concept. The one that only arrived on a Sunday afternoon in March 2026, when an Activity Monitor overlay on a GarageBand session showed 80% CPU idle and quietly rearranged something I thought I understood about myself.
The Multitasking Mythology
Somewhere between the Renaissance Man and the Jack of All Trades, late capitalism inserted a third option and called it productivity. The multitasker. The context switcher. The person with seventeen browser tabs, three communication platforms, a IDE, and a DAW all running simultaneously, each demanding a slice of attention that compounds into a cognitive debt that never quite gets paid down.
The hardware followed the mythology obediently. My work computer — a three year old HP i5 that got upgraded to 64GB of RAM — runs dozens of browser windows, VSCode, Git Bash, Slack, and WebEx simultaneously without complaint. My M4 MacBook Air runs Logic Pro alongside multiple browsers with accumulated tabs and whatever else the day demands. The RAM justified itself through sheer accumulation of concurrent demand.
I accepted this as the natural condition of a mind with broad interests operating in a world that rewards availability. The multitasking wasn't dysfunction. It was, I told myself, a feature. The Renaissance Man in a networked age. The Jack of All Trades with an internet connection.
The Activity Monitor suggested otherwise.
Brooklyn Knew First
The MacBook Neo arrived on a Saturday morning via Amazon, having been ordered the previous week in a moment of tech press induced enthusiasm that I subsequently spent approximately two hours rationalizing in conversation with an AI. The rationalization held up surprisingly well — the Neo as sling bag creative satellite, GarageBand to Logic Pro pipeline, live sound liaison tool for a band's thirty year anniversary West Coast tour. The case was coherent enough that I preordered the $699 Touch ID model with 512GB before the morning walk had delivered its verdict.
The verdict, when it arrived, was simply this: the Neo is the right tool for the sling bag because the sling bag is the right philosophy for the Neo. One app at a time. Minimal context switching. Full presence in the current task. The same way I'd unconsciously been using my iPad for years — Universal Control for live mixing, one app commanding complete attention — without ever articulating it as a principle.
Sunday afternoon, newly arrived machine, I opened GarageBand. Not to test it. Not to benchmark it. Just to see what happened.
What happened was Brooklyn.
GarageBand's Drummer feature offers a roster of virtual session drummers with names that carry implicit aesthetic information. SoCal plays big and open, the kind of kit that fills an arena or a San Fernando Valley rehearsal space. Kyle is the competent workhorse, anonymous enough to sit under almost anything. Brooklyn plays skinny — tighter, more compressed, less sustain, the drummer who plays like space costs money because in Brooklyn it does. I picked Brooklyn without entirely knowing why. Brooklyn knew what the song needed before I did.
A chugging Precision bass line followed, recorded through a decade-old Focusrite Scarlett Solo into the Neo's USB 2 port, the bass going first through a Sonicake Pocket Master's SVT emulator. Pre-Doolittle Pixies energy, mostly on the middle two strings. Then a melodic counterpart on the G string, short phrases answering the chug from 30% right in the stereo field. Then a keyboard preset called Sweet Cream Synth Lead that arrived sounding like Gary Numan and Tubeway Army had briefly collaborated with Steve Winwood on Arc of a Diver — cold and warm simultaneously, synthesized and human, uncertain about its own emotional temperature in the most interesting possible way.
Cop Shoot Cop minus the aggro plus a Tubeway Army keyboard bit. One minute seven seconds of music that didn't exist that morning.
The Activity Monitor, opened out of curiosity mid-session, showed GarageBand consuming 933 megabytes of the Neo's 8 gigabytes of RAM. Memory pressure graph: solidly green. CPU idle: 80.96%. The machine was doing real work and barely noticing.
The uncomfortable question that followed wasn't about the Neo's specs. It was about every previous machine's specs. What, exactly, had all that horsepower and RAM been for?
The Focus-Fire Principle
The honest answer is that the horsepower was real and the justification was partially mythological. Logic Pro finishing sessions genuinely need the M4 Air's headroom. Enterprise software genuinely consumes the HP's 64 gigabytes. The hardware wasn't wrong. The story about why it was necessary was partially a story about multitasking as virtue rather than multitasking as tax.
The tax is paid in attention rather than compute cycles. Every context switch costs something that doesn't show up in Activity Monitor — the re-entry cost of returning to a thing after leaving it, the half-finished thoughts that accumulate like browser tabs, the creative momentum that dissipates between the idea and the execution because seventeen other things demanded a slice of the interval.
The Neo with 8 gigabytes of RAM didn't accidentally reveal this. The usage pattern did. One app. Full attention. The thing and nothing else.
This is where the third concept arrives, the one that sits between Renaissance Man and Jack of All Trades without quite being either. Call it the Jack of Focus-Fire Trade. The Traveller skill system's breadth, but deployed sequentially rather than simultaneously. Not someone who does everything at once, but someone who can bring everything to bear on the current thing — and then completely release it, and bring everything to bear on the next thing.
Focus-fire is a concept meaning to concentrate all available firepower on a single target rather than distributing it across many. The Jack of Focus-Fire Trade applies the same principle to attention. Brooklyn gets everything. Sweet Cream gets everything. The Precision bass gets everything. The house sound engineer at The Chapel in San Francisco, standing in front of a PA that needs exactly two XLR outputs and the explanation for why, gets everything. Then the Jokaero exits.
Leonardo da Vinci was not painting the Sistine Chapel while designing war machines while filling notebooks simultaneously. He was doing one thing at a time with complete commitment. The Renaissance Man's breadth is a catalogue of focuses, not a permanent state of distributed attention. The Jack of All Trades attempts anything the situation demands — one situation at a time.
The Quiet Radicalism
Late capitalism has opinions about this. The demands and velocity of contemporary work life put a quick kibosh on any idyllic notion of sustained single-pointed focus. The Slack notification arrives regardless of what Brooklyn is doing. The WebEx meeting doesn't care about Sweet Cream's emotional temperature. The sixty-four gigabytes of enterprise RAM exist because the enterprise doesn't believe in one thing at a time.
Which makes the sling bag a quietly radical object.
Not because it contains a $699 computer that cost roughly the same as a premium Chromebook but can make music the Chromebook will never manage. Not because it holds a 2014 Scarlett Solo that has outlasted two MacBook Pros and approximately forty-seven pieces of software that were going to change everything. Not because the Korg minikey and the USB-C hub and the padded sleeve that fit by accident complete a kit that took a decade to accidentally assemble.
But because the sling bag represents a protected enclave. A portable zone where the kibosh temporarily can't reach. Between soundcheck and doors at a thirty-year anniversary show. On a flight from Sacramento to Los Angeles on banked miles from 2016. On a couch on a Sunday afternoon while a small scruffy dog adjudicates cheese distribution with complete epistemological clarity about what actually matters.
The Neo doesn't promise focus. It makes focus available when the kibosh briefly lifts. It sits in the bag charged and ready, one app at a time, waiting for the moment when the Renaissance Man can briefly stop performing breadth and simply exercise it.
Brooklyn doesn't need more drums.
Sweet Cream doesn't need more oscillators.
The unnamed song doesn't need more tracks.
It needs the one thing, done with everything you have, for exactly as long as it takes.
Then AirDrop, and move on.
The English teacher planted the seed at fifteen. The Traveller rulebook gave it a skill rating. Forty years of accumulated passions and pursuits provided the catalogue. And a Sunday afternoon in GarageBand, with 80% of the CPU sitting idle and one minute seven seconds of music that didn't exist that morning, quietly suggested what to do with all of it.
One thing at a time.
Adequately.
With everything.