The narrative is over-stated.
Corporate AI maturity is largely self-reported — and systematically over-reported. The market reads the press release. The evidence, observable in public signals, tells a different story.
An evidence-led thesis · MMXXVI
The S&P 500 will look unrecognizable in twenty years.
Corporate AI posture is self-reported — and systematically over-reported. The market is pricing the narrative. We measure the evidence.
1955 Fortune 500 gone
88%
attrition to date
Avg. index tenure
33→17.9yrs
since the 1960s
Projected 20-yr churn
≤70%
of today's incumbents
The thesis
Three claims. Each one measurable.
This is not a story about technology. It is a set of measurable claims about who is actually transforming — and who is narrating.
Adoption compounds.
Enterprises are past pilots — they are trying, and visibly struggling, to transform. Gains compound: every day, the K-shaped divergence between deep adopters and performative adopters widens.
The index reorders.
88% of the 1955 Fortune 500 is already gone; average tenure has collapsed from 33 years to under 18. As AI-native operating models out-execute headcount-bound bureaucracies, we project up to 70% of today's incumbents drop off within two decades.
The divergence · compounding daily
One starting point. Two destinies — widening every day.
Timeline
T+20.0Y
The gap between the narrative and the evidence is the trade. Entry now captures the compounding; waiting cedes it.
The evidence
Obsolescence is the rule, not the exception.
The index has never been static. What is new is the speed — and, this time, the mechanism.
FIG. 02 — AVERAGE S&P 500 CONSTITUENT TENURE
1960s
33.0YRS
TODAY
17.9YRS
A seat in the index used to be a tenure. It is becoming a term — and the term is shortening while the operating gap widens.
88%
of the 1955 Fortune 500 is already gone.
≤70%
of today's incumbents we project drop off within two decades.
FIG. 03 — A PARTIAL LEDGER · PUBLIC RECORD
| Company | Peak standing | Outcome | Year |
|---|---|---|---|
| Eastman Kodak | ~90% of U.S. film sales at peak | ▼ CHAPTER 11 | 2012 |
| Blockbuster | 9,000+ stores at peak | ▼ CHAPTER 11 | 2010 |
| Sears | Largest U.S. retailer for decades | ▼ CHAPTER 11 | 2018 |
| Bethlehem Steel | Pillar of the 1955 Fortune 500 | ▼ CHAPTER 11 | 2001 |
| Digital Equipment | No. 2 computer maker, late 1980s | ABSORBED | 1998 |
| Compaq | World's largest PC maker, mid-1990s | ABSORBED | 2002 |
| Pan Am | The unofficial U.S. flag carrier | ▼ CEASED OPS | 1991 |
| F.W. Woolworth | Dow component for 73 years | ▼ STORES CLOSED | 1997 |
The mechanism changes each era — distribution, software, AI. The outcome does not.
The firm
Obsolescence Capital is named for a single conviction: a company using AI will replace each company in today's S&P 500 — and that shift is measurable now.
The firm exists to read that shift the way it deserves to be read: soberly, quantitatively, in publicly observable evidence.
01
Evidence over narrative
We weigh measurable public signals, not self-reported posture.
02
Compounding sets the clock
Advantage accrues daily. The dispersion of the next two decades is being set now.
03
Sober by construction
Quantitative in method, unhurried in temperament. Conclusions arrive when the evidence does.
Correspondence — paul@obsolescencecapital.com