Dr. Wallace’s Favorite Mental Models

The Hype Cycle

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Excitement about a new idea always overshoots, then crashes, then slowly recovers — but only for the ideas that actually work. The Hype Cycle is a way of asking where a technology or trend really stands, separate from how loud the enthusiasm around it currently is.

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30-Second Understanding
Hype always overshoots.

New technologies draw attention long before they deliver reliable results. Expectations spike, then collapse when early attempts disappoint. The real value, when it exists, arrives later and more quietly than the hype did.

Core question: Is my current level of excitement or doubt about this technology based on its track record, or on how much attention it is getting right now?

The five-phase arc

Trigger
Peak
Trough
Slope
Plateau

Important: not every technology completes the arc. Some die in the trough. Some skip the peak entirely. The shape is a pattern to check for, not a guaranteed itinerary.

Mental Model Compass

Use it when enthusiasm is loud and evidence is thin.

The model is most useful when a new technology, tool or trend is drawing strong reactions and you need to separate real signal from noise.

CalibratePrimary use case
BeginnerDifficulty
3 minUnderstand
10–30 minApply with evidence
AI adoption decisionsTechnology roadmapsVendor evaluationInvestment timingInnovation strategyManaging team expectations
Model at a Glance

Identify → Locate → Adjust → Track.

The Hype Cycle helps you place a specific claim on a realistic arc. It does not tell you which technologies will ultimately succeed.

01Identify

Name the specific technology or claim, not the whole category. “This vendor’s agent product” is identifiable. “AI” is not.

02Locate

Match current evidence, not current enthusiasm, to one of the five phases below.

03Adjust

Set expectations, budget and timelines that fit that phase, not the pitch.

04Track

Re-check your placement as real adoption evidence, not press coverage, accumulates.

The Five Phases

Each phase rewards a different response.

Expand each phase to see what evidence defines it and what a sensible response looks like.

Phase 1
Technology Trigger

A breakthrough, product launch or demo generates interest. Proof of commercial viability does not yet exist. Early coverage is driven by potential, not results. Sensible response: track it, experiment cheaply, do not commit budget yet.

Phase 2
Peak of Inflated Expectations

Early publicity produces a number of success stories, often without failures being reported yet. Expectations now exceed what the technology can reliably deliver. Sensible response: discount the loudest claims, ask what has actually shipped and worked at scale.

Phase 3
Trough of Disillusionment

Implementations fail to deliver, interest fades, and commentary turns skeptical or dismissive. Some technologies are abandoned here permanently. Others quietly keep improving. Sensible response: look for steady, boring progress rather than headlines.

Phase 4
Slope of Enlightenment

More instances of the technology are understood well enough to produce real, if uneven, benefits. Second- and third-generation products emerge. Sensible response: this is often the best time to adopt — risk has dropped and the hype has moved elsewhere.

Phase 5
Plateau of Productivity

Mainstream adoption criteria are clear and the technology is evaluated on ordinary terms: cost, reliability, support. It has stopped being exciting and started being useful. Sensible response: evaluate it like any other mature tool.

Off the curve
Technologies that never arrive

Some innovations fall into the trough and never climb out, because the underlying problem was smaller than the hype suggested, or a better alternative won. The curve describes a common pattern, not a guarantee of eventual payoff.

Worked Example

A mid-size firm evaluates an AI agent platform.

This is an illustrative example designed to teach the method.

Yr 1: Trigger
Yr 1.5: Peak
Yr 2: Trough
Yr 3: Slope
Yr 4: Plateau
SITUATIONVendor pitches an AI agent platform as a full replacement for a support team
EVIDENCETwo case studies, no independent benchmarks, no churn data
LOCATELoud launch, thin proof: Peak of Inflated Expectations
ADJUSTPilot with one low-risk queue instead of a full rollout
RE-CHECKRevisit in two quarters once real usage data exists
NEXTExpand only if the pilot clears the trough on its own merits
Do not conclude: “This technology is a bubble” or “This technology is proven.” Both are premature. The useful finding is simply which phase the evidence currently supports.
History & Accuracy

A business heuristic, not a law of technology.

Expand for the origin of the model and its real limits.

Where did the Hype Cycle come from?

The Hype Cycle was developed at the technology research firm Gartner, with analyst Jackie Fenn credited as its primary originator. Gartner introduced the framework in 1995 and has published an annual Hype Cycle report for specific technology categories ever since, placing each technology on the curve based on its analysts’ judgment.

Is a technology’s position on the curve measured or judged?

It is a qualitative, expert judgment call, not a precise measurement from controlled data. Treat any specific placement, including Gartner’s own published charts, as one informed opinion to weigh against your own evidence, not an objective reading.

Does every technology pass through all five phases?

No. Independent analysis of past Hype Cycle charts suggests only a minority of technologies traverse all five phases, and a majority of those that enter the Trough of Disillusionment never emerge from it. The five-phase shape describes a common pattern seen across many past technologies, not a mechanism that forces every new one to follow it.

Common Mistakes

The arc is easy to misuse.

Mistaking peak for plateau

A loud launch can feel like proof of maturity. Check for real, boring adoption data, not press coverage.

Assuming the curve is guaranteed

Some technologies die in the trough permanently. Placement on the curve is a working hypothesis, not a promise of eventual success.

Confusing your own enthusiasm with evidence

Personal excitement is not market data. Separate how you feel about an idea from what has actually been demonstrated.

Giving up during the trough

Disillusionment is often a normal, temporary phase, not proof that a technology has failed for good.

Treating the curve as a calendar

The shape describes an order of phases, not fixed durations. Some technologies move through it in months, others in decades.

Ignoring who is talking

Vendors, early adopters and skeptics each see a different slice of the curve. Weigh the source before weighing the claim.

When Not to Use It

Some evaluations need a different tool.

Use direct evidence when...

robust adoption data, benchmarks or financial results already exist. Do not substitute a narrative heuristic for real numbers you can get.

Use technical evaluation when...

the real question is whether something works at all, not how hyped it currently is.

Skip it for mature, boring technology

there is no need to map something already in steady, well-understood use onto a hype arc it long ago left.

Counterpoint: framing something as “just hype” can also become its own bias, used to dismiss real progress without checking current evidence.
Combine It With

One model rarely does the whole job.

Try It Yourself

Build a Hype Cycle evaluation prompt.

This browser tool structures your thinking. It does not send your information anywhere or perform AI analysis.

Your AI-ready prompt

Complete the fields, then build your prompt.
Save as Skill

Turn this mental model into a reusable AI skill.

Save as Skill converts the model into portable Markdown instructions that teach an AI when and how to apply the Hype Cycle, what questions to ask, what evidence to seek, what mistakes to avoid and how to structure its analysis.

Build your own Mental Models Skills Library

Save the skills you find useful and organize them into your own reusable library. The Markdown is intentionally model-neutral, so it can be used wherever an AI system accepts uploaded files, project knowledge, custom instructions or reusable text context. Platform capabilities differ, so this is a portable skill file rather than a claim of one-click installation.

Go Deeper

For readers who want the nuance.

Does every technology go through all five phases, in order?

No. The shape describes a common pattern across many past technologies. Some skip the peak, some die permanently in the trough, and some move so fast that the phases are hard to separate in real time.

How long does the cycle usually take?

There is no fixed duration. Gartner's own published charts show time-to-plateau estimates ranging from under two years to more than ten, varying by technology. Treat any specific timeline as a rough estimate, not a schedule.

Is the Hype Cycle itself backed by rigorous data?

It is best understood as a structured expert heuristic distilled from observing many technology adoption stories, not a statistically validated model with precise predictive power. Independent analyses have found only a minority of technologies complete all five phases. Its value is in the questions it prompts, not in treating any single chart as ground truth.