Somewhere in your head is a novel. It has characters you visit while commuting, a plot you revise while falling asleep, and — statistically — a publication date of never. This calculator measures what carrying it actually costs you.
Cognitive load theory treats unfinished intentions as open loops that consume working memory: the Zeigarnik effect keeps incomplete tasks mentally active whether you want them there or not. An unwritten novel is the heaviest possible open loop — years old, structurally complex, and emotionally load-bearing. Meanwhile the economics moved: traditional publishing advances for unwritten fiction by unknown authors have collapsed since the late 20th century, so the fantasy of the rescue-advance quietly expired.
Enter your concept’s age, its cast size, and your daily mental editing time. The output is an annual Cognitive Load Deficit in hours, its equivalent in written words, and a projected valuation verdict that is either the push you needed or the permission slip to finally let the idea go. Both are wins.
The formula
t_daily- Daily time spent on unwritten ideation and mental editing (hours)
A_concept- Age of the novel concept in years
C_complexity- Narrative complexity — planned characters, subplots, worldbuilding depth (0–10)
W_rate- Your realistic drafting speed (words per focused hour)
OC- Opportunity cost — words that could have existed
How it works, step by step
- Date the idea honestly: when did this novel first colonize your head?
- Estimate daily ideation minutes — include shower plotting, commute casting, and 2am dialogue polishing.
- Rate narrative complexity: a locked-room mystery is a 3; your nine-POV fantasy trilogy with a conlang is a 10.
- Enter a realistic drafting speed (most people write 300–600 words per focused hour, not the 2,000 they imagine).
- Compare the annual overhead against the ~250 hours a typical first draft actually requires.
Worked examples
The nine-year fantasy trilogy
Concept age 9 years, 35 min/day ideation, complexity 9/10, drafting speed 350 wph. CLD ≈ 480 hours/year — Full cognitive mortgage. The words-that-could-exist counter reads over 100,000 annually: the trilogy’s first volume, every year, spent on maintenance instead.
The commuter mystery
Concept age 1.5 years, 10 min/day, complexity 4/10, mid-career. CLD ≈ 90 hours — Rent-heavy but borderline. The model suggests the cheapest experiment: one Saturday hour weekly, which would out-produce the mental editing within a month.
How to read your score
Frequently asked questions
Is thinking about my novel really a “cost”?
Partly, no — ideation is genuinely part of writing, and daydreaming has restorative value. The cost argument comes from cognitive load theory: unclosed intentions (the Zeigarnik effect) occupy working memory involuntarily. The calculator’s low band explicitly labels modest ideation as healthy.
How many hours does writing a novel actually take?
A useful anchor: an 80,000-word first draft at a realistic 300–500 words per focused hour is roughly 160–270 hours. Many users discover their annual mental-editing budget exceeds that — the single most motivating output of this tool.
What happened to book advances for unwritten novels?
The report this calculator is built on notes that traditional advances for unwritten fiction by non-celebrity authors have largely vanished; publishing economics shifted risk onto authors. The realistic monetization path now runs through a finished manuscript, which reframes the opportunity cost entirely.
Should I outline or just start writing?
The calculator is agnostic, but the externalization principle is not: any format that moves narrative structure out of working memory (outline, voice memos, index cards) collapses the cognitive overhead measured here, usually within weeks.
Is it okay to just… not write it?
Completely. The tool’s retirement verdict is sincere: consciously releasing an idea closes the loop almost as effectively as finishing it. What costs you is the unchosen middle.
Does the calculator save my idea details?
It never sees them — you enter numbers, not plot. Everything computes locally.