Project ideas from Hacker News discussions.

Covid-19 mRNA Vaccination and 4-Year All-Cause Mortality

📝 Discussion Summary (Click to expand)

The discussion revolves around a study suggesting the safety and efficacy of COVID-19 vaccines. Three major themes emerged:

1. Confirmation of Vaccine Safety and Reduced Severe COVID-19 Risk

The central theme is the interpretation of the study's findings, which indicated that vaccinated individuals experienced a significantly lower risk of death from severe COVID-19 without an associated increase in all-cause mortality.

  • Supporting Quote: User lentil_soup summarized the key outcome: "And this bit: 'vaccinated individuals had a 74% lower risk of death from severe COVID-19 and no increased risk of all-cause mortality'"

2. Skepticism Regarding Study Methodology and Confounding Factors

Many users expressed traditional epidemiological concerns about the observational nature of the study, specifically questioning whether the observed benefits were solely due to the vaccine or confounding variables, such as "healthy user bias."

  • Supporting Quote: User attila-lendvai raised a classic concern about participant selection: "that in itself could be healthy user bias (if a healthier subset was taking up the vaccine). did they control for that?"
  • Supporting Quote: User zosima questioned the causality inferred from the all-cause mortality data: "The reduction in all-cause mortality was independent of covid deaths. Which seems to suggest that there was big differences between the groups other than the vaccination."

3. Distrust Stemming from Initial Communication Failures and Mandates

A significant portion of the conversation focused not on the latest data, but on past criticisms regarding how the vaccines were promoted. Several users felt that aggressive, oversimplified, or changing public messaging, combined with mandates, eroded public trust, leading to current skepticism regardless of subsequent data.

  • Supporting Quote: User mberning highlighted the impact of shifting public messaging: "Also during this time the pitch degraded from 'you won’t get sick or spread the disease' to 'well I still got sick, but it probably would have been worse without the vaccine'. It is actually crazy to think about in retrospect."
  • Supporting Quote: User trts argued that institutional "hubris" generated skepticism: "The establishment is responsible for the skepticism it engendered against itself by its hubris"

🚀 Project Ideas

Comparative Safety Dashboard for Medical Interventions (CSD-MI)

Summary

  • This project creates a unified, interactive dashboard that visualizes the relative risks (adverse events, mortality, long-term effects) of multiple common medical interventions (e.g., COVID vaccines, prescribed medications, common procedures) side-by-side, using structured regulatory data (like VAERS, FAERS, clinical trial data where available).
  • The core value proposition is moving beyond single-product safety concerns to enable users to perform a comparative risk assessment in a low-bias environment, addressing the desire for quantifiable comparisons and honesty about uncertainty.

Details

Key Value
Target Audience Health-conscious individuals expressing caution about novel interventions; people seeking to compare risks between options (e.g., vaccine vs. infection, drug A vs. drug B).
Core Feature An interactive, filterable dashboard allowing users to select two or more interventions (e.g., "COVID Vaccine v. Flu Vaccine v. Natural COVID Infection") and view normalized adverse event rates, long-term follow-up data summaries, and mortality risks side-by-side.
Tech Stack Modern frontend framework (React/Vue), Backend capable of querying structured health data APIs/databases (Python/FastAPI), Data aggregation pipeline using ETL for public sources (PostgreSQL/TimescaleDB).
Difficulty High
Monetization Hobby

Notes

  • Users expressed a need for accurate, direct comparison: "I would like to see more studies confirm what many consider to be obvious," and frustration over single-issue focus: "What I think a lot of people who are anti-vax miss is the risk of the vaccine compared to the risk of COVID." This tool allows direct comparison between stated risks (e.g., "1/100 chance of death from vaccine" vs. "risk of death from disease").
  • It directly addresses the "honest communication about uncertainty" point by presenting data sources and confidence intervals, allowing users to see what is known versus what is unknown (e.g., long-term effects).

Causal Pathway Visualizer for Observational Studies (CPV-OS)

Summary

  • A web tool designed to visually represent the assumed causal structure (or lack thereof) in cited observational studies, using concepts from Judea Pearl’s Causal Inference framework (like DAGs).
  • The core value proposition is to demystify confounding and collider bias for non-statisticians, directly addressing skepticism about observational data methodology ("...no causal diagram so we have no idea how they reasoned about this.").

Causal Pathway Visualizer for Observational Studies (CPV-OS)

Details

Key Value
Target Audience Data-literate but non-epidemiologist readers who are nervous about observational study conclusions ("If you’ve read even something layman friendly like Pearl’s Book of Why you should be feeling nervous about this.").
Core Feature Users input or select a study. The tool presents a preliminary, simplified Causal Graph (DAG) visualizing common potential confounders (age, comorbidities, underlying health status/"healthy user bias") that the study claims to control for, highlighting where biases (like colliders) might still exist.
Tech Stack Frontend visualization library (D3.js or similar for DAG drawing), Python backend for parsing study methodology abstract/discussion sections to map variables, lightweight knowledge base of common medical confounders.
Difficulty Medium/High
Monetization Hobby

Notes

  • This targets the audience's sophisticated critique of the initial study discussed, which centered on confounding factors ("did they control for that?").
  • It forces transparency on how studies control for biases, fulfilling the intellectual desire for honesty about methodology rather than just outcomes.

Institutional Communication Fidelity Tracker (ICFT)

Summary

  • A public service archiving and time-stamping official public health communications (press releases, key statements from agencies like CDC/FDA) alongside subsequent corrections, clarifications, or contradictory data releases.
  • The core value proposition is providing an auditable record of shifting narratives ("the pitch degraded from 'you won’t get sick...' to 'well I still got sick...'"), helping users reconstruct the timeline of institutional messaging.

Details

Key Value
Target Audience Users frustrated by perceived inconsistent or manipulative messaging from health authorities ("I'd like accurate communication from the beginning," "The establishment is responsible for the skepticism it engendered against itself by its hubris.").
Core Feature A searchable timeline database. Users search for a topic (e.g., "COVID transmission in vaccinated individuals") and see the initial official statement (Date/Source/Statement), followed by any conflicting or revised statements later on, ideally with NLP categorization of the shift (e.g., "Correction," "Clarification," "Policy Change").
Tech Stack Static site generator (Jekyll/Hugo) deployed to Cloudflare Pages for cheap hosting, Simple database/CSV source files for storage, basic text indexing for searching.
Difficulty Low/Medium
Monetization Hobby

Notes

  • This directly addresses the widespread frustration over messaging shifts, whether it was about masks, transmission, or stated vaccine efficacy.
  • Providing the context and timing of these shifts empowers users who feel they were "gaslit" or misled, which builds trust by acknowledging the flawed communication history.