An elevator pitch is the 30 to 60 second verbal summary of a startup's business, used as the cold opening of investor or sales conversations. It's designed to be delivered in the time of an elevator ride with a stranger, with the goal of producing enough interest to earn a follow-up conversation. The name dates to the late 1980s and refers to the apocryphal scenario of catching a hard-to-reach executive in an elevator with a single brief window to make an impression.
The formula that works for most startups: name + category + the specific customer + the specific outcome + the differentiating insight, with [The Ask] as an optional closer when the audience is an investor. Worked example: "We're Stripe, payment infrastructure fo...
The people side of building a company. This cluster covers founder roles and dynamics, the executive lineup, the hiring sequence, sales and customer success roles, compensation and equity, performance management, layoffs and severance, and the culture and operations that determine whether the team holds together. 63 entries.
If your business succeeds or fails on hiring (most do), this is the cluster you live in.
Debt financing is raising capital by borrowing money that must be repaid with interest, used as an alternative or complement to equity financing. It includes everything from a personal credit card founders charge on day one to a $50M syndicated bank loan at a Series D company, with a wide spectrum of structures in between, each with different cost, covenant complexity, founder risk, and dilution tolerance.
The categories that matter for startups: founder-side debt (credit cards, personal lines of credit, home equity loans, used in the earliest pre-revenue phase, typically $5K to $100K, with personal liability and interest rates of 8 to 25 percent), SBA loans (Small Business Administration 7(a) and 504 programs, $500K to $5M t...
AI alignment is the research field and engineering discipline focused on ensuring AI systems pursue their intended goals correctly. It tackles the problem of getting models to do what developers and users actually want, rather than misinterpreting goals, gaming reward functions, or developing unintended behaviors. The work spans current techniques (RLHF, Constitutional AI, evaluation against intended behaviors) and fundamental research into how to align increasingly capable systems whose internal reasoning may be opaque. It's a subset of AI safety focused specifically on the goal-correctness problem.
The alignment problem:
How do you ensure an AI system pursues what you want, not something else? Sounds simple but is technically...
A growth strategy is the explicit plan for how a company will scale revenue over a defined period, typically 1-3 years. It specifies the growth levers the company will pull (acquisition, expansion, retention, pricing, geographic, product), resource allocation across those levers, and the metrics that will track success. The discipline is making prioritization explicit rather than treating all levers as equally important, which means none get the focused investment to actually compound. Growth strategy is the operating layer below go-to-market: GTM defines how you reach customers; growth strategy defines how you scale revenue with them, and a well-executed strategy pushes a company from early traction into a genuine [Scale-Up...
Regulation S (Reg S) is the SEC exemption from US securities registration for offers and sales made outside the United States to non-US persons. It is distinct from Regulation D (which covers domestic offerings to US accredited investors), allowing US companies to raise capital from international investors without registering the offering with the SEC under the Securities Act of 1933. It is the regulatory mechanism most commonly used when US startups raise from sovereign wealth funds, foreign family offices, foreign corporations, or other non-US investor types.
The two main "safe harbors" within Reg S:
The CEO (Chief Executive Officer) is the highest-ranking executive of a company, responsible for strategy, capital allocation, top-level hiring, and accountability to the board. The role also owns key external relationships with investors, the board, major customers, and partners. At most venture-backed startups it is held by a founder (the "founder-CEO") during early and growth stages, sometimes transitioned to a "hired CEO" during scale-up or later stages. It is the role that anchors the company's strategic direction and the position where most operational authority concentrates in venture-backed companies.
The core responsibilities of a CEO:
The vocabulary of the AI era of startups. This cluster covers the foundational concepts of modern AI (foundation models, LLMs, generative AI), the architecture and operations that power AI applications (Transformer, training data, fine-tuning, prompt engineering, RAG, context window), the economics that determine viability (inference cost, GPU cost, token economics), the strategic moats AI companies build (data flywheel, AI moat, wrapper vs thick wrapper), the safety considerations (alignment, safety), and current-era terms (multimodal, agents, vibe coding). 22 entries.
This cluster is the freshest in the lexicon. If you're building anything AI-adjacent in 2025, every entry here is operational vocabulary.
A PIPE (Private Investment in Public Equity) is the purchase of stock in a publicly-traded company at a discount to market price by institutional investors. Buyers include hedge funds, mutual funds, and growth equity firms, with public companies using PIPEs when they need capital quickly without the time and complexity of a traditional secondary offering. PIPE deals are relevant to startups primarily in the context of SPAC mergers (where PIPE financing typically accompanies the SPAC transaction to validate the combined company's pricing) and at post-IPO companies that need additional capital. Most pre-IPO startup founders don't deal with PIPE directly, but understanding it matters for SPAC contexts and post-IPO operations.
The mec...
Co-founder vs Founder vs CEO and Founder: Co-founder = a [founder] when there's more than one person at the origin. They're the same role; co-founder just describes the plurality. [CEO and Founder] is the title combo, a founder who also currently holds the CEO job. Read the founder entry for the origin-role definition; read this entry for the team-dynamics nuance (when does someone "earn" the title, what happens when there are too many, how the title gets misused as a recruiting tool).
A co-founder is a person who shares the work, equity, and financial risk of starting a company from its earliest stage, typically before product-market fit. The title is not granted by paperwork. It is earned by being on the cap table and on the ...