← Jacob SansburyEssay · 04 / 13

Phantom Nodes

Thirty years of new methods and the survival rate never moved. That is not a failure to help founders — it is a fingerprint.

2026-03-21
1,569 words
7 min
Startups
Progress
written with my agents

"Sounds like AI" deletes the best thinking first. Using tools to create isn't inhuman.

Every tool since fire had its deniers, and history marks them irrelevant fast.

(Also your tools for detecting this kind of stuff are worse than you think. Pangram flags this note as AI-written. I typed it myself. Point proven.)

About 80% of new businesses survive their first year. Around 50% make it to five, and roughly 35% are still standing at ten. The BLS has been publishing these bands since the mid-1990s and they have hardly moved. The dot-com boom didn't move them, and neither did cloud or mobile or the explosion of available capital, and so far neither has AI. Whatever changed over those thirty years, and nearly everything did, the survival numbers came out the same.

For most of that time, smart people have been trying to fix this, and by any normal measure their frameworks won. Lean Startup, Customer Development, and the Business Model Canvas now show up in 97% of university entrepreneurship course syllabi, which is about as orthodox as an idea can get. The chart never moved.

The usual assumption is that the survival rate is a problem, one we haven't found the right solution to yet. I've started to think it's a measurement, and that we've been misreading it.


Back in 1999, Webvan raised $375 million to do grocery delivery and went bankrupt. People usually say they were "too early," but too early just means the world hadn't arranged itself into the right shape yet. For grocery delivery to work you needed smartphones and GPS tracking, a gig labor workforce that ride-sharing would later train, consumer trust in strangers showing up at your door, real-time three-party payment processing, and in 1999 none of that existed. Instacart made the same idea work fifteen years later, not because those founders were better but because the prerequisites had finally resolved.

Facebook needed the social norms that Myspace established. DoorDash needed the behavioral infrastructure that Uber built. Not because these were linear steps in a plan, but because each one required conditions that only the previous wave could create. Webvan had the right idea in the wrong world. They were probing a position in the landscape that looked real but wasn't. A phantom node.


Zoom out from any single example and a structure emerges. Every innovation sits in a directed graph with prerequisites: technologies, infrastructure, behavioral norms, regulatory conditions that must exist before the new thing becomes feasible. And the structure is combinatorial. Most important nodes have multiple parents from different branches that must all resolve simultaneously. That's why timing is so precise, and why the same innovations keep getting independently discovered at the same time. Calculus, the telephone, evolution by natural selection. The dependencies resolve, the node ripens, and whoever is standing closest picks it. The identity of the winner matters less than we like to think once the complements have resolved.

You can't make a baby in one month by getting nine women pregnant.


The graph also branches. Each unlock exposes new child nodes. Personal computing exposes operating systems, which expose the web, which exposes social networks, which expose mobile-native platforms, which expose the gig economy, which exposes delivery. The frontier gets wider every generation.

Over 30 years, the number of startups grew substantially while average size at birth shrank (about 7 employees in 1994, about 4 by 2019). More probes, and cheaper ones. If the number of real nodes were fixed, more people competing for the same slots should have dragged the survival rate down. It stayed flat.

The explanation I find most compelling is that the frontier expands proportionally, with each unlock exposing new nodes at roughly the rate new entrants arrive. That sounds like a coincidence in need of explaining until you notice the two quantities are coupled. The expanding frontier is what draws new entrants in the first place, since more feasible nodes means more visible opportunities and more people starting companies. Entrants don't arrive independently of the frontier growing. They arrive because it grew.

If that's true, the ratio of real nodes to phantom nodes may look roughly the same at every scale. And the chart may be a proxy for the shape of the opportunity frontier, not a report card on founder quality.

A caveat. The flat chart is consistent with this, but doesn't prove it alone. Composition shifts (more founders, smaller companies, lower commitment) could also produce flat rates. But the topology explanation accounts for something the composition story doesn't: why the ratio appears stable across very different conditions.


This changes what it means to be good at startups. Methods like Lean Startup improve how you search within an already-feasible node. Competition determines who wins a ripe node. The dependency graph determines which nodes are feasible at all, and how many. The first two operate within the frontier. The third determines the frontier. The chart is flat because the third dominates the first two in the aggregate. Methods and competition decide who succeeds. The graph decides how many opportunities are real.

Which makes "visionary founder" a more concrete idea than genius or hubris. It's graph-reading. Elon Musk has succeeded across rockets, EVs, neural interfaces, and AI. Reusable rockets became feasible when materials science, simulation compute, and manufacturing automation converged. EVs became feasible when lithium-ion costs crossed a threshold. The skill that carries across such wildly different domains is being able to look at the current state of the world and see which nodes are about to become real, which is why great serial founders repeat: it isn't domain expertise they're transferring, it's the ability to read prerequisites.

Venture capital, seen this way, is a portfolio bet on the graph. Spread enough positions across the frontier and you improve your odds of standing near something as it ripens. VC returns have followed a power law for decades without changing much, and I suspect that distribution reflects the structure of the graph more than the skill of any individual investor.


None of this is specific to technology, as far as I can tell.

CRISPR is probably the clearest example from outside tech. Gene editing needed the mapped genome, and the genome couldn't be mapped without PCR, and PCR itself only became possible once somebody understood DNA polymerase. By the time that whole chain had resolved, multiple labs were converging on gene editing at once, because the node was ripe. And the same layering turns up in stranger places. Impressionism had to wait for portable paint tubes, so painters could actually leave the studio, and for photography to show up and threaten representational art. CDOs couldn't exist until mortgage-backed securities did, a bleaker version of the same story. Everywhere I've looked, progress moves by unlocking nodes whose prerequisites have resolved, and the graph constrains what's possible more than any individual actor does.


The strangest part, to me, is what happened when the truly big technologies arrived. The internet was a general-purpose technology, and so were mobile and cloud, and so is AI, each of them opening whole new layers of the graph rather than one node, and each arrival blew up the branching factor. Through all of it the survival rate sat still. Each wave pulled proportionally more founders into the frontier it had opened, so the old ratio just played out at a much larger scale, with no higher fraction of winners or of losers. Somehow the graph keeps getting bigger while its shape stays the same.

My guess at why general-purpose technologies matter so far out of proportion to any single application is that they raise the branching factor across the whole graph instead of advancing one domain. AI is the interesting case here. If what limits progress is how fast dependencies resolve, AI could be the first technology that speeds up the ripening of nodes rather than just widening the frontier, and that would be a different kind of change, the same nodes resolving faster instead of more nodes appearing at the same speed. Whether the chart moves, or entrants just get drawn in even faster, I can't say yet, and the evidence so far is uneven anyway, since AI dramatically speeds up some work while actively slowing down other kinds. The acceleration will be jagged across the graph.

The self-similarity claim is testable. Patent citation networks, product space data, and startup cohort data could measure whether the frontier's branching rate really keeps pace with new entrants. The literature on recombinant growth and path dependence points this direction, but the specific connection to survival rates hasn't been tested.

And if any of this is useful, the practical question is: which dependencies have recently resolved? For the current AI wave, the obvious candidates are evaluation infrastructure, expert-heavy vertical workflows where human judgment filters false positives, and the physical layer (power, cooling, interconnection) that moves at the speed of atoms, not bits.


The flat chart isn't a failure to help founders. It's a fingerprint of how progress actually works. The structure is stable even when everything around it changes, because it reflects a dependency graph whose topology is more fundamental than any method, capital base, or individual.

The founders who repeat are the ones who can read the graph.