---
id: "entity-visicalc"
type: "entity"
entityType: "product"
canonicalName: "VisiCalc"
aliases: []
source_timestamps: ["00:09:38"]
tags: ["software", "history"]
related: ["concept-mainframe-echo", "framework-device-shift"]
sources: ["s19-apple-trillion"]
sourceVaultSlug: "s19-apple-trillion"
originDay: 19
---
# VisiCalc

## Profile

The first spreadsheet software, cited as the *killer app* that proved the value of owned, fixed-cost local compute on the Apple II.

## Role in the Source

VisiCalc is the canonical Step-3 example in [[framework-device-shift]]: a software category that **could not exist** under metered mainframe economics, but became revolutionary once local marginal cost dropped to zero.

The rhetorical move in the source is: *what is the VisiCalc of local AI?* That unknown future application — running continuously, reading user history, invoking models thousands of times per hour — is the prize that [[action-build-native-ai]] is targeting. See [[concept-native-ai-apps]] for the architectural pattern.

## Why This Analogy Matters

VisiCalc was not a better version of an existing mainframe app. It was a *new category of software* that required the new economics to exist at all. The implication: Native AI's killer app may not look like a better ChatGPT — it will be something currently uneconomical to imagine.