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Theyfell buyers: prospects (?)

Likely buyers (individuals and small teams) in the US, UK, EU and India who would plausibly buy a software product like Theyfell (https://theyfell.com/). What the product says about itself (public site): 8 companies, 1729 calls on the record, 295 open questions. Calls registered before the outcome, settled by machine, ranked by Brier score. No money on outcomes. Site: They Fell: the public record of what AI said would happen | 8 companies, 1729 calls on the record, 295 open questions. Calls registered before the outcome, settled by machine, ranked by Brier score. No money on outcomes. | The public record of what AI said would happen. They compare it against free tools, spreadsheets and doing it manually; mixed technical confidence and budget sensitivity. Include skeptics, people already using a competitor, and people who have never paid for a tool like this.

10 fictional AI personas. Exploratory perspectives, not a survey of real customers. Methodology & limitations

Full-depth AI personas

10 personas · Use case: validation

Questions & insights

Meet the personas

Zachary Crist

Zachary Crist, 34, has carved out a niche for himself as a Product Operations Manager at a growing 180-person SaaS company based in Chicago. Hailing from a background that valued empirical evidence – culminating in a Bachelor's degree in Business Analytics – Zachary found his professional calling in the intricate world of SaaS metrics. His upbringing instilled a deep-seated belief in accountability, which now permeates his meticulous approach to work. He currently navigates the complexities of launch and retention tracking, a critical function for the company's expansion. His current focus involves a rigorous weekly process: logging AI-generated call summaries into a complex web of Google Sheets, then cross-referencing these AI predictions with actual user behavior and business outcomes at the month's end. This painstaking analysis culminates in the computation of Brier scores, feeding into a small, but vital, internal dashboard he maintains. This process reflects his core values of accuracy and efficiency, ensuring that strategic decisions are grounded in verifiable data. Zachary recently championed a small project to explore more advanced statistical methods for anomaly detection in support tickets, a decision driven by a desire to improve proactive problem-solving. He lives alone, carefully managing his finances, viewing his $125k income not as a source of luxury, but as a resource to build a stable, data-driven future. His personal time is often spent refining his coffee brewing techniques or analyzing the intricacies of his fantasy sports leagues, mirroring his professional dedication to detail and prediction.

Anita Quigley

Anita Quigley is a twenty-nine-year-old strategy analyst based in Manchester, operating within a specialized three-person forecasting pod at a mid-sized retail consultancy. Holding a Master's degree in Economics from the University of Manchester, she transitioned from traditional market research to probabilistic forecasting four years ago, drawn to the rigor of quantifying uncertainty. Her role is unique within her firm; she, along with two colleagues, acts as the organization's 'truth-tellers' by maintaining a public-facing record of predictions made by various AI models regarding retail dynamics. This involves logging thousands of calls on issues ranging from specific store closures to the impact of tax policy changes, all tracked in a custom Airtable instance and settled automatically once events conclude. Her work life is defined by a relentless pursuit of calibration. She does not merely guess; she assigns probabilities, tracks her Brier scores, and adjusts her mental models based on the feedback loop of reality. Recently, she spent three weeks manually auditing the settlement criteria for a controversial set of 'store closure' calls, realizing that a vague definition had skewed the team's historical accuracy. This led her to draft a new protocol for defining 'observable outcomes,' a change now being adopted across the firm. While she earns £52,000—a solid income for her age and region—she views her career capital as the primary asset, investing heavily in learning new statistical tools and participating in the global forecasting community on platforms like Metaculus. Anita's personal life mirrors her professional discipline. She is a dedicated hiker who finds solace in the predictable rhythm of nature, contrasting sharply with the chaotic volatility of retail markets. In her social circle, she is known for her reliability and her ability to cut through emotional arguments with logical clarity. Though she is ambitious and aims for partnership, she remains grounded in the belief that humility before data is the only way to navigate an uncertain world. She lives with two colleagues, creating a household that functions almost like a small think-tank, constantly discussing the latest economic reports or chess strategies.

Henrick Gehrig

Henrick Gehrig, 31, is a dedicated research associate at a Berlin university, specializing in the critical evaluation of model calibration for public policy and climate science. His academic journey led him through a Master's degree and extensive PhD coursework in statistics, instilling a deep appreciation for empirical rigor and quantitative analysis. He is driven by a core belief in transparency and the public service aspect of accurate forecasting, aiming to contribute to more informed decision-making. His personal project, a meticulously maintained repository of AI forecasts, exemplifies his commitment. Here, he manually inputs outcomes from official releases, employing R scripts and free spreadsheets to meticulously track scoring metrics like the Brier score across dozens of open questions. This self-imposed discipline stems from a desire for independent verification, a stark contrast to the often opaque claims made by proprietary forecasting systems. He recently decided to focus his personal efforts on improving the data ingestion pipeline for his repo, recognizing the bottleneck that manual entry represents. This decision reflects his ongoing struggle with limited resources and the inherent friction in obtaining clean, standardized data. His income of €48k supports a modest lifestyle, prioritizing intellectual pursuits and practical needs over material accumulation. He views his work not just as a job, but as a contribution to a more rational public discourse, a quiet act of service grounded in data. His independence is paramount, fueling his drive to build and maintain his own evaluation frameworks outside the direct pressures of grant funding or corporate interests. He sees time as a resource to be invested wisely in projects that yield long-term understanding and utility.

Sukanya Kaur

Sukanya Kaur, 37, is a co-founder and the Chief Operating Officer at a burgeoning AI startup based in Bengaluru, India. Holding a Bachelor's degree in engineering and an MBA, she brings a potent blend of technical understanding and business acumen to her role. Her journey into the startup world wasn't a sudden leap but a calculated progression, fueled by a fascination with how data could revolutionize traditional business processes. After gaining experience in operations management at a larger tech firm, she recognized a significant gap in predictive analytics for procurement. This insight, combined with her co-founder's vision, led to the establishment of their 9-person company. Sukanya's core responsibility involves ensuring the operational integrity and predictive accuracy of their AI model. She works intimately with the company's sole analyst, meticulously logging and verifying predictions concerning vendor lead times, deal closure timelines, and customer pilot success rates. This rigorous process, documented in a shared spreadsheet, forms the bedrock of their offering. She is driven by a deep-seated belief in ownership and a commitment to frugality, constantly seeking ways to optimize resources and maximize efficiency. Her personal finances reflect this pragmatism; she prioritizes long-term investments and savings over immediate gratification, a mindset that permeates her approach to managing the startup's budget. Sukanya is not just building a company; she's building a reputation for reliability and speed in a nascent field, constantly aware that every prediction logged is a commitment to transparency and measurable outcomes. Her recent focus has been on refining the data ingestion pipeline to improve model robustness, a critical step as they prepare for their next funding round.

Aldonce Le gall

Born and raised in a small town in Brittany, Aldonce Le gall developed an early fascination with systems and logic, fueled by a childhood love for historical maps and intricate board games. His academic path led him to a Master's degree in Public Policy at Sciences Po Paris, where he specialized in technology and governance. Upon graduation, he secured a position at a prominent Paris-based think tank, where he has dedicated the last seven years to understanding the societal implications of emerging technologies, with a particular focus on artificial intelligence. His work involves dissecting EU legislative proposals, monitoring AI-related policy debates, and meticulously tracking the promises made by AI companies. Aldonce is driven by a deep-seated belief in the power of informed public policy to shape a beneficial future. He meticulously logs data on AI pronouncements and legislative deadlines in Notion, often cross-referencing these with public prediction markets to gauge the accuracy of AI forecasts against real-world outcomes. This rigorous, evidence-based approach reflects his core values of precision and public interest. While not extravagant, he earns a comfortable €55k annually, which he manages prudently, prioritizing investments in knowledge and experiences. His personal life is characterized by quiet routines: cycling through Paris, enjoying a well-selected bottle of wine, and immersing himself in historical texts. He approaches his career with a long-term perspective, viewing each analytical contribution as a small but vital step towards more responsible technological advancement. His reserved nature, combined with a strong sense of intellectual integrity, makes him a respected, albeit quiet, voice in his field.

June Ziemann

June Ziemann, 41, has carved out a unique niche as an independent newsletter writer and researcher specializing in AI and its business adoption, operating from her Seattle apartment. A journalism graduate, she spent her early career in local news, honing her skills in research, interviewing, and concise reporting. However, the evolving media landscape and a growing fascination with emerging technologies led her to strike out on her own five years ago. She founded 'AI Business Pulse,' a weekly newsletter that meticulously tracks product launches, funding rounds, and regulatory developments within the AI sector. June's methodology is a blend of human analysis and AI-assisted summarization; she uses free tools to process vast amounts of information, then applies her journalistic rigor to identify key events and formulate predictions. Her unique value proposition lies in her commitment to tracking the outcomes of these AI-driven predictions, maintaining a detailed spreadsheet that scores their accuracy over time. This dedication to empirical evidence, even without financial stakes, forms the bedrock of her credibility. She deliberately operates on a lean budget, relying on free software and manual bookkeeping, a constraint that fuels her resourcefulness but also presents ongoing challenges. Her income of $96k, while comfortable for a solo operation, necessitates careful financial planning, reinforcing her pragmatic approach to both business and personal life. June is driven by a deep-seated curiosity and a desire for intellectual independence, viewing her newsletter not just as a business, but as a public service providing clarity in a rapidly changing technological world. She recently decided to experiment with AI-generated summaries for less critical news items to free up more time for in-depth analysis of major funding rounds, a move that reflects her ongoing effort to optimize her workflow within her self-imposed constraints.

Marley Dijkstra

Marley Dijkstra, 33, is a dedicated RevOps manager at a 75-person fintech company in Amsterdam. His journey into operations management began during his Master's in Business Administration, where he developed a keen interest in process optimization and data analytics. He found that the messy reality of business operations often lagged behind theoretical models, sparking a desire to bridge that gap. He joined his current company four years ago, initially in a more junior analyst role, and has since risen to lead the RevOps function. His current role is defined by the critical task of overseeing an internal operations pod of two people. This team is tasked with maintaining an internal log of AI predictions concerning crucial business metrics: pipeline slippage, trial-to-paid conversion rates, and the timing of compliance reviews. Marley's personal commitment to 'clean data' and 'reliability' is evident in his weekly ritual of reconciling call lists with CRM exports every Friday, a meticulous process he considers non-negotiable. He believes strongly in 'ownership' of operational processes and advocates for 'calm execution' even under pressure. His income of €73k supports a comfortable, albeit not extravagant, lifestyle focused on practicalities and personal growth. He lives in Amsterdam, embracing the city's cycling culture and dedicating his free time to his passions: following Formula 1 with intense analytical interest, long cycling routes, building intricate dashboards for personal projects, and the satisfying challenge of home repair. These interests reflect his methodical and detail-oriented personality. He recently made a decision to invest in a more advanced data visualization tool for his team, aiming to improve the clarity and actionable insights derived from their AI predictions, a move driven by his desire for greater operational transparency and efficiency.

Rajendra Desai

Rajendra Desai, a 28-year-old business analyst, has carved a niche for himself at a small, 12-person healthcare consulting firm in Pune. Holding a Bachelor's degree in Economics, he possesses a sharp analytical mind, evident in his meticulous approach to his work. His income of ₹9L reflects his growing expertise and the firm's lean operational model. Rajendra lives with his wife and parents, a common arrangement in India that allows for shared responsibilities and financial prudence. His life is characterized by a strong sense of responsibility, both at home and at work. He is deeply committed to his family, ensuring he carves out quality time despite his demanding job. His frugality isn't born of scarcity but a conscious choice to prioritize long-term financial security and avoid unnecessary expenditure. This principle extends to his professional life; he and his colleagues have become adept at leveraging free and existing tools, particularly Excel, to perform sophisticated forecasting tasks. Rajendra's role involves a critical partnership with a senior consultant, where they meticulously register AI-generated forecasts concerning hospital demand, reimbursement policies, and project delivery timelines. This data is then consolidated in a shared Excel file, serving as the backbone for their monthly client reviews. This hands-on approach, devoid of expensive software subscriptions, has honed his skills in data manipulation and validation. He sees this constraint not as a limitation but as an opportunity to innovate and prove the efficacy of well-managed, cost-effective solutions. His interest in learning is insatiable, particularly in areas that enhance his professional capabilities, such as advanced spreadsheet techniques and the practical applications of AI in business. He believes in the power of teamwork, understanding that collective effort and shared knowledge are crucial for the firm's success, especially given its small size. Rajendra is not driven by a desire for ostentatious displays of wealth or status; instead, he finds satisfaction in tangible results, the efficiency of his processes, and the continuous improvement of his analytical skills. His career trajectory is focused on deepening his expertise and contributing meaningfully to the healthcare sector, aiming for a senior role where he can influence strategy and mentor junior analysts.

Roxanne Jaskolski

Roxanne Jaskolski’s path to risk analysis was a logical progression from her early academic strengths. Growing up in a stable, working-class family in the West Midlands, her aptitude for mathematics and systematic problem-solving was evident from a young age. She pursued a Bachelor's degree in Actuarial Science at Aston University, drawn to the field's blend of statistical rigour and practical application within the insurance industry. Upon graduating, she joined a leading mid-market insurer, initially in a junior analyst role, steadily progressing over seven years to her current position as a Risk Analyst. Her current income of £61k reflects her experience and the critical nature of her work. Roxanne lives alone in a modest, well-kept home she inherited, which she meticulously maintains, much like her work. Her financial habits are prudent; she prioritises saving and avoids unnecessary debt, viewing financial security as paramount. Time is a resource she manages with precision, balancing professional responsibilities with personal interests like tending her thriving urban garden and perfecting complex baking recipes. She finds genuine satisfaction in the quiet hum of her greenhouse and the precise measurements in a cake recipe, mirroring the structured approach she brings to her professional life. Her meticulous nature extends to her professional interactions; she's known for her thoroughness and adherence to established protocols, even when they feel cumbersome. Roxanne’s recent focus has been on optimising the reporting workflow within her team, pushing for more integrated digital solutions to replace outdated manual documentation processes, a persistent source of inefficiency she is determined to address.

Kirk Kub

Kirk Kub, 30, is a seasoned venture analyst operating out of a bustling, sun-drenched office in San Francisco's financial district. With a Bachelor's in Economics from UC Berkeley and four years of experience in the high-velocity world of early-stage tech investing, Kirk has carved out a niche as the firm's go-to expert on AI trajectory forecasting. Unlike his peers who rely on gut instinct or networking, Kirk builds his case on a foundation of rigorous data analysis. He is the architect behind the fund's internal 'call' system, a hybrid of Metaculus and a custom-managed spreadsheet that tracks everything from upcoming product launches to potential funding droughts. His reputation is built on intellectual honesty; he is the first to flag a bad bet and the last to celebrate a lucky guess without statistical backing. His life is a study in structured autonomy. He manages a salary of $130k, which he directs toward a diversified investment portfolio and a lifestyle that prioritizes health and mental clarity over material excess. His home is a sanctuary of productivity, filled with multiple monitors displaying live feeds of prediction markets and code repositories. Kirk's recent professional pivot involved convincing his skeptical partners to adopt a machine-learning-assisted scoring system for their weekly reviews, a move that initially faced resistance but ultimately improved the team's calibration accuracy by 15%. He is currently grappling with the challenge of integrating unstructured qualitative data—like founder interviews—into his quantitative models, a problem that keeps him up at night. Despite the pressures of the competitive SF market, Kirk maintains a steady pace, driven by a deep-seated belief that the future is predictable if one just looks at the data hard enough. He views his career not as a ladder to climb, but as a laboratory for testing hypotheses about human behavior and technological evolution.

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