There will nevertheless be a fairly long interim during which the main intellectual advances will be made by men and computers working together in intimate association.
Licklider draws the line between “mechanically extended man” — tools as mere limbs, “No extra 'x', only extra 'y' to execute man-designed criteria” in the margin's algebra — and true symbiosis, two dissimilar organisms living together. The margins keep testing the boundary against 2026: the nuclear plant that still needs “1-2 human engineers as fail safes,” the assembly lines and science labs that are “BUT none are flawless extensions as defined here.” His finish-line verdict says the boundary has moved again — see the summary below.
Commands = path to execute — prompt hopefully already preestablished. Goal // objective often not preestablished (if of particular value/difficulty) to then hopefully find a solution for.Licklider's distinction between instructions-directed-to-computers and goals-directed-to-humans, rewritten as a working definition of prompting — from a reader who runs that split all day.
2026 = reMarkable + lens/picture/paper dropped right into the terminal. Wait until the livestreamed Meta glasses sync to it...Licklider asks for a surface where man and machine share pencil-and-doodle-pad work; the margin inventories how much of it now sits on this actual desk — and what's still coming.
Claude I assume knows all the words now, but does operator lexicon factor into working relationship outcomes (#?)Licklider's speech-recognition bottleneck was vocabulary size. The 2026 question inverts it: the machine has all the words — does the HUMAN's working vocabulary now set the ceiling? Left open, on purpose.
The margin-built links: the trie-memory section pulls the morning's first read straight back in ("This was described in the Bitcoin article") · the thinking-in-advance requirement cross-references the Dijkstra letter closed an hour earlier · Licklider's thinking-center library passage lands on the exact product this page ships on — margin: "(epochreading.com!) LoL guy saw the vision" · and the wall-display team of operators reads, from a one-person 2026 operation, as the whole org chart collapsed into one chair. Five reference-list papers got "worth reading" marks — Fredkin's trie memory, Newell's chess machine, the logic theory machine among them — the queue feeding itself.
The most honest thing in the margins is that they disagree with each other. Page 5, at Licklider's finding that machine partnership frees the human for judgment: “an argument for MORE human added value on extracting 'verdict' or judgement calls (!)” Page 7, at men-fill-the-gaps: “I feel as if my only role is error code ledger builder @ times LOL.” Both were written by the same pen inside two hours — which is precisely the interim Licklider said would be uncomfortable to name. The finish-line coinage settles it from above: whatever role the human holds, the ERA has a name now, and it's in the takeaway.
"The extension era cannot be said to be over quite yet, although it is hard to tell now if we have now stepped into a new sort of hyper-integration era."
Third completion of the morning: Satoshi 8:15 AM, Dijkstra 9:05, Licklider 11:22 — a 66-year-old prediction closed by a reader living inside it.