Supply Chains: How They Work and Fail
Discover how physical goods move from design to doorstep and learn to diagnose breakdowns when systems stall. Connect digital logistics tools, supplier networks, and mechanical engineering principles to keep global operations running.
Like Duolingo, but for Supply Chains: How They Work and Fail. Tomo turns the whole topic into a game you play five minutes a day, until it actually sticks.
22 levels across 3 sections, about 44 minutes end to end, roughly 9 days at five minutes a day. It moves through Diagnosing Breakdowns and Flow, The Physical and Digital Toolkit, and Strategic Design and Crisis Management. It starts from scratch.
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Key ideas in Supply Chains: How They Work and Fail
- Retail stores operate at the very end of a long supply pipeline, so shelf emptiness is a lagging symptom of past disruptions
- Store stockouts usually reflect delays, component shortages, or transport bottlenecks that began weeks earlier upstream
- Routine store-level ordering cannot prevent a stockout if supplier inventory or transit routes are already starved
- Procuring parts and manufacturing goods takes far longer than the immediate delivery consumers expect
- The lead time gap forces supply chain planners to commit capital and order materials based on forecasts rather than confirmed sales
- Waiting until customer orders arrive before ordering critical components guarantees stockouts and missed sales windows
- Small, normal variations in retail purchases become magnified as each tier adds safety stock buffers
- The bullwhip effect causes the furthest upstream suppliers (like raw material providers) to experience the most extreme order spikes and crashes
- Tiers closer to the final consumer see the steadiest, least distorted demand signals
- When key components are capped, prioritizing high-margin products protects overall company profitability
- When standard transit lanes back up, paying for faster shipping routes like air cargo makes sense for valuable, time-sensitive goods
- Component shortages can be managed by approving functional substitute materials to keep production lines running
- Value stream mapping separates active transformation time from passive waiting time
- Products spend the vast majority of their total supply chain lead time sitting idle in queues, staging bays, or storage
- Cutting idle dwell time speeds up overall delivery far more effectively than trying to speed up active machine operations
- Keeping goods in a warehouse continuously drains money through storage fees, tied-up cash, and risk of damage
You've tried the other tabs
Thirty open tabs. Four facts you actually kept.
You watched. You nodded. By Sunday it was gone.
One answer, then back to scrolling.
Eight weeks. You meant to finish. You didn't.
Tomo gives Supply Chains: How They Work and Fail the Duolingo treatment: levels, streaks, and quick quizzes that test what you just learned. That game loop is what the tabs above never had, so it's the one you actually finish.
Here's what playing it feels like
A real question from this course. Take your best guess.
Picture this: a supermarket suddenly runs out of oat milk on a Tuesday morning, causing a stockout. What is the most likely root cause?
Get it right to open this lesson and 21 more in the app.
Where Supply Chains: How They Work and Fail takes you
- 1
Diagnosing Breakdowns and Flow
- Tracing a Supply Breakdown to Its Root Cause
- Balancing Inventory Costs and Availability
- 2
The Physical and Digital Toolkit
- Managing the Digital Flow with ERP, WMS, and TMS
- Engineering the Physical Flow and Material Handling
- 3
Strategic Design and Crisis Management
- Sourcing Suppliers and Managing Network Risk
- Designing Products for Manufacturability and Supply
- Resolving Bottlenecks and Navigating Crises
3 sections · 7 units · 22 levels. Built to play, not to enroll.
Tomo is in ChatGPT
Tomo is also a ChatGPT plugin: the same playable courses, built and played inside your chat.
Add Tomo to ChatGPT- What to ask
- “Make me a Tomo course on black holes.” “Turn this chat into a Tomo course.”
- What you get
- Quick questions with instant feedback, hearts and stars, ready to play in about a minute.
- Where it goes
- No sign-up to start. Connect your Tomo account and your streak carries on in the app.
You pick the voice
Supply Chains: How They Work and Fail is taught in the Storyteller style: every lesson is a story. Want a different feel? In the app you can spin up the same topic in any of Tomo's teaching styles. Same facts, totally different vibe.
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