Find evidence
Write the evidence test before the feature list
An experiment brief forces a team to name what could prove an idea wrong before build momentum makes every result look encouraging.
3 min · Practical guide
THE COMPLETE NOTEBOOK
Follow the question.
Search the text, open a chapter, or go straight to a section. Every guide keeps its original source links and evidence labels.
Search across the complete research text.
Put the research to work.
All practical guides ↗Earn customers
Choose the first customer segment by constraint, not charisma
Segment prospects by trigger, workflow, buyer, and budget path, then make the weighting judgment visible instead of declaring an intuitive ICP.
3 min · Practical guide
Read the economics
Retention With the Cohort Intact
A small operating sheet for separating logo retention, gross revenue retention, and net revenue retention without letting new sales repair the past.
3 min · Practical guide
SOURCE-CHECKED ADDITIONS
New pages in the notebook.
Prepared 16 September 2026. New source checks and historical backfill, separate from the supplied research snapshot.
Research noteSource / 2026
A grid queue is not a fleet of power plants
Read interconnection demand as a development pipeline, with exits and dependencies—not as installed capacity or startup revenue.
3 min read · 3 sources
Research noteSource / 2026
Health software needs more than one kind of proof
Keep regulatory classification, clinical evidence and the buyer’s operating case in separate columns.
3 min read · 4 sources
Research noteSource / 2024
An AI demo is not a deployment plan
A practical way to separate capability, failure handling and the cost of operating an AI workflow.
3 min read · 2 sources
The chapter shelf
15 READER GUIDES00
The starting point
01The research, in perspective
Read the central findings, definitions, and limitations before following a particular path.
Company design
02What kind of company are you building?
Venture-backed, bootstrapped, micro-SaaS, services, deep tech, and the trade-offs between them.
Markets
03A closer look at 22 sectors
Demand, capital intensity, regulation, business models, and the openings beneath the headline.
Build & validate
04From an idea to evidence
Validation methods, willingness to pay, product development, and the limits of AI-assisted building.
Operating toolkit
05Tools, costs, and commitments
Operating software, costed stacks, startup credits, free-tier limits, and switching costs.
People & growth
06The team and the route to market
Co-founders, equity, hiring, acquisition channels, retention, and the customer lifecycle.
Company economics
07Know what the numbers mean
Metric definitions, worked examples, benchmark limitations, and eight illustrative financial models.
Capital
08Choose how to finance the business
Bootstrapping, equity, debt, grants, dilution, term sheets, and the price of control.
Support systems
09Find the right support
Accelerators, investors, studios, university programs, communities, and what selection effects conceal.
Company cases
10How companies actually got built
An outcome-mixed case library, with the base rates and missing counterfactuals kept in view.
Risk & failure
11See the failure modes earlier
Warning signs, flawed assumptions, risk checklists, and a framework for deciding whether to build.
Operations
13Build a company you can sustain
Legal structures, compliance, operations, founder workload, pivots, layoffs, and shutdowns.
Ownership
14Decide what the company should become
Cash businesses, succession, acquisitions, employee ownership, IPOs, and the paths that close early.
Exit mechanics
15Beyond the headline sale price
Buyers, valuation, diligence, earn-outs, purchase agreements, and worked proceeds waterfalls.
Post-mortems
What the record says went wrong
Stated causes, documented causes, earlier warnings, and transferable lessons from 53 entries.