IdeaWell

Project ideas from Hacker News discussions.

Mars Bar from 1991 found – and it's 20g bigger than today's

Original Article

Hacker News Discussion

📝 Discussion Summary (Click to expand)

1. Shrinkflation as a profit driver

"Reducing the portion size for junk food is probably a good thing. This is a rare case where shrinkflation may actually be beneficial to all parties." – drtz

2. Health & calorie concerns

"If the original larger bar contained more calories as well as higher quality ingredients requiring more time to digest, then the older bar may actually have been the healthier option." – Balooga

3. Historical size change awareness

"The chocolate bar with a best‑before date of 1991 was found during a clear‑out of a house in Scunthorpe." – AnonymousPlanet

4. Corporate intent to boost sales

"Mars could appeal to a more exciting chocolate eater, and a smaller lighter bar could increase consumption per capita: “While people loved the anticipation of biting into the chocolate, they often found that the bar lay rather heavily on their stomach at the end of eating it. Which means they wouldn’t eat another, sometimes for the rest of the day.”" – eterm

5. Systemic critique of market incentives

"The market optimizes for profit growth, not for customer satisfaction." – wvenable

🚀 Project Ideas

Generating project ideas…

ShrinkTrack

Summary

  • Detects when packaged goods shrink while price stays the same by aggregating barcode scans, price data, and historical size info.
  • Provides per‑gram cost and calorie‑density comparisons to expose hidden price hikes.

Details

Key Value
Target Audience Consumers, researchers, price‑watchers
Core Feature Real‑time shrinkflation alerts and analytics dashboard
Tech Stack React front‑end, Node.js API, PostgreSQL, Python data pipelines, barcode‑scanner SDK
Difficulty Medium
Monetization Revenue-ready: subscription ($4.99/mo for premium alerts)

Notes

  • HN commenters often lament “shrinkflation is everywhere”; they'd love a tool that quantifies it.
  • Could integrate with price‑tracking APIs and spark discussion on regulation.

IngredSnap

Summary

  • Browser extension that shows historical ingredient lists, size changes, and nutrition per gram for any packaged food.
  • Highlights health impact by comparing calorie density before and after shrink events.

Details

Key Value
Target Audience Health‑conscious shoppers, food activists
Core Feature One‑click view of product evolution data via Open Food Facts API
Tech Stack Chrome extension (Manifest V3), React, Open Food Facts API, GraphQL
Difficulty Low
Monetization Hobby

Notes

  • Users like the discussion about the 1991 Mars bar; they'd enjoy seeing a timeline of that bar.
  • Could spark debates on labeling laws.

PortionPulse

Summary

  • Wearable sleeve with a micro‑scale that reports real‑time weight of packaged items to detect gradual shrink.
  • Sends alerts when weight drops beyond a preset threshold, helping consumers verify shrinkflation.

Details

Key Value
Target Audience DIY tech hobbyists, frugal shoppers
Core Feature Automatic weight logging and trend graph via smartphone app
Tech Stack ESP32 hardware, BLE, Flutter mobile app, Firebase backend
Difficulty High
Monetization Revenue-ready: hardware‑plus‑subscription ($9.99/mo for cloud analytics)

Notes

  • Engages the Hacker News crowd who love IoT hacks and “smart home” ideas.
  • Could be a stepping stone to broader smart‑packaging standards.

BetterBite

Summary

  • Marketplace that aggregates smaller‑portion, higher‑quality snack products and offers subscription boxes.
  • Provides transparent pricing per gram and nutrition info to guide healthier choices.

Details

Key Value
Target Audience Health‑focused consumers, parents
Core Feature Search/filter by size, ingredient quality, and price‑per‑gram; recommendation engine
Tech Stack Next.js front‑end, Node.js API, Stripe for payments, ElasticSearch
Difficulty Medium
Monetization Revenue-ready: marketplace commission (10% per sale) + optional premium listings

Notes

  • People complain about shrinkflation and want better quality; they'd appreciate a vetted alternative.
  • Could generate discussion on market regulation and consumer advocacy.

CalorieCalc

Summary

  • Web app that ingests product photos or barcode data to compute price per gram, calorie density, and ingredient cost breakdown.
  • Flags items where price per gram rises despite unchanged or shrinking size, alerting users.

Details

Key Value
Target Audience Budget‑conscious shoppers, researchers
Core Feature Instant calculations and historical comparison chart
Tech Stack Python backend, TensorFlow Lite for image parsing, PostgreSQL, React UI
Difficulty Medium
Monetization Hobby

Notes

  • Directly addresses the “inflation‑adjusted cost per gram” comment in the thread.
  • Could be referenced in policy debates, attracting attention from advocacy groups.

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