Speaking, Reading & Thinking Rates — The Presentation Lab
The Presentation Lab · Lesson

Speaking, Reading
— and Thinking

Three cognitive speeds. Same 100 words. Your results will change how you think about slides.

Do this first
Try the experiment before reading anything else
Three rounds. One 100-word script. Takes about 3 minutes.
How it works
1
Start the timer, then speak the excerpt aloud at your normal presentation pace. Stop when you finish.
2
Reset, then read the same excerpt silently — eyes only, no lips moving.
3
Reset, then speak it aloud again — but really think about what each sentence means as you say it.
1
Speaking Aloud
Read the excerpt out loud at your normal presentation pace
Ready
Script — read aloud at your normal pace

Most people read this script silently faster than they can read it out loud. That matters. As presenters, when we fill our slides with text, it triggers the urge to read. People start reading, and when we talk over that, we interrupt their concentration. Since reading is faster than speaking, they finish before we do — making us both a distraction and a slowdown. One more thing: in theatre, upstaging means something on stage pulls focus from the speaker. That's what our slides do when overloaded with text. The worst part? We designed them that way. We're upstaged by our own slides.

0.0s

Or enter your seconds manually if you used your own stopwatch.

My time: seconds
2
Silent Reading
Read with your eyes only — no lips, no whispering
Up next
Script — read silently, eyes only

Most people read this script silently faster than they can read it out loud. That matters. As presenters, when we fill our slides with text, it triggers the urge to read. People start reading, and when we talk over that, we interrupt their concentration. Since reading is faster than speaking, they finish before we do — making us both a distraction and a slowdown. One more thing: in theatre, upstaging means something on stage pulls focus from the speaker. That's what our slides do when overloaded with text. The worst part? We designed them that way. We're upstaged by our own slides.

0.0s

Or enter your seconds manually if you used your own stopwatch.

My time: seconds
3
Speaking + Thinking
Speak aloud again — but really think about every sentence as you go
Up next
Script — speak aloud, thinking about each sentence

Most people read this script silently faster than they can read it out loud. That matters. As presenters, when we fill our slides with text, it triggers the urge to read. People start reading, and when we talk over that, we interrupt their concentration. Since reading is faster than speaking, they finish before we do — making us both a distraction and a slowdown. One more thing: in theatre, upstaging means something on stage pulls focus from the speaker. That's what our slides do when overloaded with text. The worst part? We designed them that way. We're upstaged by our own slides.

0.0s

Or enter your seconds manually if you used your own stopwatch.

My time: seconds
Your Speed Profile
Based on your three readings of the same 100-word excerpt
Speaking Aloud
wpm
Silent Reading
wpm
Speaking + Thinking
wpm
Relative speed — your three rates
Help Grow the Research
Add your results to the global dataset

Takes 60 seconds. Your results are anonymous — and help us understand whether speaking rates vary around the world.

Submit My Results →
Opens Microsoft Forms in a new tab — your seconds will be pre-filled
View the live results →
See how your speed compares to everyone who has taken this experiment — updated in real time.

Research data · n = 254 participants

How do you compare?

Here's what we found when 254 people timed themselves on the same three tasks.

① Fastest 234wpm Silent Reading Avg. 25.7 seconds
② Middle 182wpm Speaking Aloud Avg. 32.9 sec · 22% slower
③ Slowest 156wpm Speaking + Thinking Avg. 38.5 sec · 33% slower
Relative speed — same 100-word excerpt
Silent Reading
234
Speaking Aloud
182
Speaking + Thinking
156
0 wpm 60 120 180 234 wpm
Response distribution — % of 254 participants per time bracket
Silent Reading
Speaking Aloud
Speaking + Thinking
0% 10% 20% 30% 40% 50% 60% 1–9s 23% 10–19s 46% 26% 20–29s 23% 56% 48% 30–39s 13% 31% 40–49s 50s+
Reading

46% of participants finished in 20–29s. The distribution is tight and fast-skewed.

Thinking

79% of participants needed 30 seconds or more. The distribution trails deep into the slow end.


Real-world example · Advertising
Advertisers already know about speaking rates. They've been using them against you for decades.

Drug commercials are required by law to disclose side effects. But there's no rule about how fast they have to say them. The Lunesta sleep aid commercials are a textbook example of deliberate pacing manipulation — slow down the benefits so they stick, speed up the risks so they blur.

Benefits — 120 wpm — designed to stick
120 wpm

If your racing thoughts keep you awake, sleep is here on the wings of Lunesta, and if you wake up often in the middle of the night, rest is here on the wings of Lunesta. Lunesta helps you fall asleep and stay asleep so you can wake up feeling rested. Get Lunesta for a $0.00 copay at lunesta.com. Sleep well on the wings of Lunesta.

Side effects — 180 wpm — designed to blur
180 wpm

When taking Lunesta, don't drive or operate machinery until you feel fully awake. Walking, eating, driving, or engaging in other activities while asleep without remembering it the next day have been reported. Abnormal behaviors may include aggressiveness, agitation, hallucinations, or confusion. In depressed patients, worsening of depression, including risk of suicide, may occur. Alcohol may increase these risks. Allergic reactions such as tongue or throat swelling occur rarely and may be fatal. Side effects may include unpleasant taste, headache, dizziness and morning drowsiness. Ask your doctor if Lunesta is right for you.

That 60 wpm gap is intentional. The benefits land at a pace the brain can absorb — well within the thinking rate range. The side effects arrive faster than most people can process new information. The advertiser isn't just choosing words carefully. They're choosing speed. As a presenter, you have the same lever available — and now you know what it does.
What the data means for your presentations
Don't read slides to people

People who are reading don't like to be interrupted — and that's exactly what a presenter does when they read slides aloud. Your audience finishes the slide before you do, then waits. You become the distraction.

Thinking slows delivery down

When learners are actively processing ideas, they need more time. Rushing delivery forces a choice: listen or think. And when we think while speaking, our own delivery slows — which is actually useful advice for fast talkers.

Pause for thinking speed

Effective teaching matches delivery to the thinking rate — the slowest of the three. Pauses aren't silence; they're learning. Give your audience space to catch up, and they'll retain far more.

Your one thing
If your slides have more than a few words on them, your audience is already reading ahead. Match your pace to thinking speed — not reading speed — and you'll lose far fewer people along the way.
Data: McEachern & Associates Consulting Inc. — Presentation Lab participant experiment, 2021–2025 · amlearning.ca
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