RSVP (Rapid Serial Visual Presentation) shows you one word at a time at a fixed point on screen. Instead of your eyes scanning left to right across lines of text, the words come to you.
Traditional reading is bottlenecked by eye movements, regressions (re-reading), and subvocalisation. These mechanical inefficiencies mean most people read at 200–300 WPM when the brain can process language at 500–800 WPM for familiar material.
RSVP removes the mechanical overhead and lets your brain focus purely on processing words. Even at moderate speeds, reading feels more focused and less tiring.
Every word has an Optimal Recognition Point — the character your brain naturally fixates on for the fastest recognition. FlowReader highlights it so your eyes lock in instantly, with zero time wasted finding where to look.
There’s no single “right” speed. Match your WPM to what you’re reading:
Begin at 250–300 WPM for your first few sessions. Once your brain adjusts to single-word flow (usually 2–3 sessions), bump up to 350–400 and keep climbing from there.
Use the up/down arrows (or swipe left/right on mobile) to change speed as you read. Slow down when something feels rushed rather than powering through — comprehension matters more than hitting a number.
Missed something? Press the left arrow or swipe down on mobile to jump back a sentence. That’s what it’s there for — RSVP doesn’t mean you can’t re-read.
Punctuation pausing and dynamic word delay are enabled by default. They add natural breathing room at commas, periods, and long words. Keep them on — they make a big difference.
Short bursts (10–20 min) work great for newsletters and articles. Medium sessions (20–40 min) for commutes. Longer sessions (30–60 min) for books — but take a break if focus drops.
The sweet spot is the fastest speed where you still “get it.” Even 350 WPM with RSVP feels more focused than 250 WPM of traditional reading because the distractions are gone.
Eye movements during traditional reading account for roughly 10–15% of total reading time (Rayner, 1998). On top of that, readers re-read 10–15% of words through regressions (Rayner, 2009). RSVP eliminates both.
Individual words can be recognised in as little as 50–80ms (Potter, 1984). The bottleneck isn’t recognition — it’s integration. FlowReader’s punctuation pausing and dynamic word delay give your brain extra time at natural boundaries (sentence ends, clause breaks, long words) where integration happens.
The Optimal Recognition Point is based on the Convenient Viewing Position research by O’Regan & Jacobs (1992), which found that fixating slightly left of word centre reduces per-word processing time.