Does speed reading actually work?
We make an RSVP speed reader, so you would expect us to say yes. The honest answer is not in the way it is usually sold — and knowing exactly where the limit sits is what lets you get the part that is real.
The short answer
You cannot read several times faster and understand the same amount. The trade-off between speed and comprehension is one of the most consistent findings in reading research, and no technique or app removes it. What you can do is stop losing time to things that have nothing to do with how fast you think — and that turns out to be worth a lot.
Where the time actually goes
The usual pitch for speed reading says your eyes are the bottleneck: they jump around, they travel along lines, and if you stop them moving you will read much faster. The first half is true. The conclusion is not.
The most thorough review of this question — Rayner, Schotter, Masson, Potter and Treiman, So Much to Read, So Little Time, published in Psychological Science in the Public Interest in 2016 — found that eye movements account for no more than about 10% of the total time spent reading. The other 90% is language: recognising words, resolving what they mean together, and building sense out of a sentence. Remove every saccade on the page and you have removed a tenth of the cost, not nine tenths.
What one-word-at-a-time reading costs you
RSVP — the technique this site is built on — removes eye movement by flashing each word in the same spot. It genuinely does what it claims mechanically. But it also removes something you were using.
Roughly one in ten eye movements during normal reading goes backwards, re-reading a word or two you have already passed. That looks like waste, and speed-reading advice has told people to eliminate it for decades. Schotter, Tran and Rayner tested it directly in 2014 (Don't believe what you read (only once), Psychological Science): they masked each word once the reader's eyes had moved past it, so going back became impossible. Comprehension got worse. Those backward glances are not a bad habit, they are part of how understanding gets repaired when a sentence turns out differently than you expected.
RSVP makes regressions impossible by design. On easy material you will not miss them. On a dense or ambiguous sentence you will.
Someone tested the apps
Acklin and Papesh did exactly the obvious experiment in 2017 (Modern Speed-Reading Apps Do Not Foster Reading Comprehension, The American Journal of Psychology, 130(2)). They compared ordinary static text against RSVP at 700 words per minute and at 1,000. Static text beat both. Within RSVP, the slower speed produced better verbatim comprehension.
We are not going to pretend that study does not exist. It describes the thing we make.
So why build one?
Because the 10% figure measures eye movement, and eye movement is not the only thing that goes wrong when you read.
- Losing your place. Finding the start of the next line, and occasionally reading the same line twice, costs time that no reading-speed study counts because it is not reading.
- Drifting. Everyone has read half a page and realised they took in none of it. A fixed pace does not let that happen quietly — when you stop following, you notice immediately.
- Deciding to stop. A reader that keeps going is harder to abandon than a page that sits there patiently. A good share of what people mean by "I read more now" is finishing things.
- Choosing a pace at all. Most people read everything at the same speed. Setting a number makes it a decision.
None of that is a comprehension miracle. It is friction removal and attention management, and it is worth real time — just not the time the marketing claims.
What actually makes you faster
The same 2016 review that dismantles the big claims also notes that modest gains are genuinely available, and points at an unglamorous mechanism: the more you have met a word, the faster you process it. Reading speed rises with vocabulary and familiarity, which means the reliable way to read faster is to read a lot, in the areas you want to be fast in.
Practically:
- Measure your real starting speed instead of guessing it.
- Push slightly — a pace that feels a little quick, not one that feels impossible.
- Read familiar kinds of material fast and unfamiliar material slowly, deliberately.
- Treat 400–500 words per minute on ordinary prose as a good outcome, not a disappointment.
How we would use it
Fiction, articles, essays, email, and the long readable middle of a non-fiction book: RSVP, at a pace that feels slightly brisk. Contracts, textbooks, equations, code, anything you intend to be examined on: full-page view, normal reading, and go back as often as you like. In Grimoire that is one key — T for the full text, B for the two-page book view — and clicking any word picks the stream back up from there.
Questions people ask
Does speed reading work?
Reading faster is trainable, but not by the multiples usually advertised. Research consistently finds comprehension falls as speed rises, and eye movements are only about 10% of total reading time, so removing them cannot produce a threefold gain.
Can you read 1,000 words per minute?
You can display words that fast and follow the gist of easy material. Controlled comparisons find comprehension at those speeds is worse than ordinary reading, so it is skimming rather than reading.
Is RSVP better than normal reading?
For straightforward text it is comparable and removes distraction, lost lines and drifting. For difficult text it is worse, because it prevents you from glancing back, and glancing back measurably supports comprehension.
What is a realistic reading speed to aim for?
Most adults read around 200–300 words per minute. With practice, 350–500 on ordinary material is a realistic and useful target.
Should I stop subvocalising?
Not entirely — trying to suppress inner speech tends to hurt comprehension. Reading slightly faster than you could say the words aloud is enough to stop it setting your pace.