Lecture 3: Things that Make us smart part 2

Human-centered technology

Technology designed around the task, the human, and the machine. Task + human + machine.

Machine-centered technology

Technology designed mainly around the task and the machine, without enough attention to the human user. Task + machine.

Why human-centered technology matters

It helps technology support human thinking instead of forcing humans to adapt completely to the machine.

Main goal of human-centered technology

To support a balance between experiential and reflective modes of thinking.

Experiential mode

A mode of thinking where people perceive and react to events around them efficiently and effortlessly.

Reflective mode

A mode of thinking that is effortful, deliberate, and used for comparison, contrast, thought, and decision-making.

Experiential thinking is relatively:

Effortless, fast, automatic, and based on perception and reaction.

Reflective thinking is relatively:

Effortful, slower, deliberate, and based on conscious thought and decision-making.

Experiential mode and expertise

Experiential thinking is often a mode of expert behavior because experts can react quickly and smoothly.

Reflective mode and decision-making

Reflective thinking is important when a person needs to analyze, compare options, or make a careful decision.

Are experiential and reflective modes mutually exclusive?

No. They can co-occur at the same time.

Do experiential and reflective modes map onto separate cognitive activities?

No. The same activity can happen in either experiential or reflective mode depending on context.

Mode as an orthogonal dimension

Mode of thinking is a separate dimension from the activity itself; the same task can be done experientially or reflectively.

Why Norman warns against only two categories

Human cognition is complex and multidimensional, so experiential and reflective modes are simplifications.

Why the two-mode distinction is still useful

It helps compare different aspects of mental behavior and understand how technology supports or blocks thinking.

Experiential and reflective mixture

A person can enjoy an experiential mode while also reflecting at the same time.

Technology can push thinking to extremes

Some technologies force users too much toward either experiential or reflective thinking.

Expert practice

Skilled performance where a person can act efficiently, smoothly, and often with less conscious effort.

Flow state

A state where someone is deeply engaged in an activity, acting smoothly and with focused attention.

Flow and experiential mode

Flow often depends on experiential thinking because the person reacts smoothly without stopping to consciously analyze every step.

Aviation example

The lecture uses expert aviation to show experiential and reflective modes of thinking and transitions between them.

Aviation as experiential thinking

Pilots must perceive and react quickly, smoothly, and efficiently while flying.

Aviation as reflective thinking

Pilots also need reflection during planning, debriefing, evaluation, and decision-making.

Transitions between modes

Experts may move between experiential action and reflective analysis depending on the situation.

Mismatch between task and mode

A problem that happens when a technology encourages the wrong mode of thinking for the task.

Why task-mode mismatch is problematic

If the task requires reflection but the technology pushes experience, or the task requires experience but the technology forces reflection, performance can suffer.

Experiencing when we should be reflecting

A situation where someone reacts quickly or automatically when they should slow down and think carefully.

Reflecting when we should be experiencing

A situation where someone overthinks or is forced to analyze when they should act smoothly and intuitively.

Tools for experiential modes that require reflection

Technologies that feel fast or automatic but are used for tasks that actually need careful thought.

Tools for reflective modes that evoke experience

Technologies that should support careful thought but instead pull users into fast, emotional, or automatic reactions.

Tools that restrict reflection

Technologies that make it harder for users to pause, compare options, think critically, or make deliberate decisions.

Example of experiencing when we should reflect

Scrolling through social media and instantly believing or sharing information without checking whether it is true.

Example of reflecting when we should experience

A poorly designed interface that makes an expert stop and think through every step of a task they normally perform smoothly.

Social media as experiential technology

Social media often encourages fast reactions, quick judgments, emotional responses, and effortless scrolling.

Why social media can create mismatch

If the user needs careful evaluation of information, but the platform encourages fast reactions, the mode does not match the task.

Calculator as experiential support

A calculator can make arithmetic fast and effortless for users who already understand the math.

Calculator as possible mismatch

A calculator may create problems for learners if it makes arithmetic effortless when they actually need reflective practice.

GPS as experiential support

GPS allows users to navigate quickly without deeply reflecting on routes or spatial relationships.

GPS as possible mismatch

GPS can be harmful if the goal is to learn geography or build long-term navigation skills.

Human-in-the-loop

A design approach where the human remains meaningfully involved in the system’s operation, judgment, or decision-making.

Why human-in-the-loop matters

It prevents the machine from taking over completely and helps preserve human judgment, learning, and responsibility.

Human-centered technology and human-in-the-loop

Human-centered technology often keeps the human involved so the system supports, rather than replaces, human thinking.

Machine-centered design problem

It may optimize machine performance while ignoring human cognition, limitations, needs, or goals.

Human-centered design advantage

It considers how people actually think, act, learn, make mistakes, and use tools.

Best technology design

Technology that supports the right balance of experiential and reflective thinking for the task.

Important exam idea

Do not only ask whether a technology is good or bad; ask whether it supports the right mode of thinking for the task.

Connection to L2

L2 said technology can help or harm depending on context; L3 adds that technology can help or harm depending on whether it supports the right thinking mode.

Context specificity in L3

Whether technology is helpful depends on the specific task, user, purpose, scope, and timescale.

Spheres of influence in L3

Technology can affect the user in the moment, long-term performance, life outside the task, social relations, and society.

Specific technology question

What exact technology is being evaluated?

Specific user question

Who is using the technology?

Specific purpose question

What is the user trying to accomplish?

Scope question

What level of effect are we considering?

Timescale question

Are we looking at immediate effects or long-term effects?

Experiential vs reflective main difference

Experiential thinking is fast and effortless; reflective thinking is slower and deliberate.

Why experiential mode is useful

It allows people to react quickly, smoothly, and efficiently, especially in practiced or familiar tasks.

Why reflective mode is useful

It allows people to analyze, compare, plan, evaluate, and make thoughtful decisions.

When experiential mode can be harmful

It can be harmful when a situation requires careful thought, evidence-checking, or ethical judgment.

When reflective mode can be harmful

It can be harmful when overthinking interrupts expert performance or slows down a task that requires quick action.

Main takeaway from L3

Human-centered technology should support the right balance of experiential and reflective modes of thinking.

Likely exam question: machine-centered vs human-centered

Machine-centered technology focuses on task plus machine, while human-centered technology focuses on task plus human plus machine.

Likely exam question: experiential mode

Experiential mode is fast, efficient, relatively effortless thinking where people perceive and react to events around them.

Likely exam question: reflective mode

Reflective mode is effortful, deliberate thinking used for comparison, contrast, thought, and decision-making.

Likely exam question: task-mode mismatch

A task-mode mismatch happens when a technology encourages experiential thinking when reflection is needed, or reflection when experience is needed.

Likely exam question: why balance matters

Balance matters because different tasks require different modes of thinking, and good technology should support the mode that fits the task.

Likely exam question: aviation example

Expert aviation shows pilots using experiential thinking during fast skilled action and reflective thinking during planning, marking, and debriefing.

Likely exam question: human-centered technology

Human-centered technology supports the human user’s cognition instead of only optimizing the machine or task.

Likely exam question: can modes co-occur

Yes. Experiential and reflective modes are not mutually exclusive and can happen together.

Likely exam question: why the two categories are limited

Human cognition is complex and multidimensional, so experiential and reflective modes simplify cognition but are still useful for comparison.