The engineer reading a technical book at night
BeforePDF in Preview, plan in a browser tab, highlights in an app that never synced.
NowOpens the book chapter, reads for forty minutes, ticks off two tasks, closes the laptop.
New · Read & Watch modes
Read, watch and take notes without leaving your learning plan.
Open a book chapter, an article section or a video part, and the resource opens right there. Your checklist stays in view, progress keeps tracking, and every note goes to the task it came from.
- Free for every learner
- Books, articles and videos
- Nothing to download
/ Ch 08
chapter-08-batch-normalization.pdf
p. 5 / 10
Deep Learning · Ch 084 / 10
Deep Learning · Ch 085 / 10
§ 3
Scaling and shifting with γ, β
figure 5.1 · from source PDF
Reading now · Scale and shift with γ, β
Chapter 08 · 5 tasks
Batch Normalization
chapter-08-batch-normalization.pdf · 10 pages
/ Section 02
augmentingcognition.com
38% through
Section 02
The forgetting curve
The curve is exponential
The curve is exponential, not linear. You lose the bulk of a fresh memory almost immediately, then the rate of loss slows. This shape is the single most important fact behind every review schedule that follows.
HighlightNoteEach time you recall something just as you are about to forget it, the curve resets — and it also flattens. The next time, the memory decays more slowly than before.
This is the spacing effect: reviews spread across time produce far stronger memories than the same number crammed together.
Section 02 · 3 tasks
The forgetting curve
augmentingcognition.com · cleaned for reading
/ Part 03
Normalizing Activations in a Network
Part 03
3:24
embedded video · YouTube / Vimeo / Drive
3:24 / 8:00
Part 03 · Scaling and shifting with γ, β2/5 parts
Part 03 · 3 tasks
Scaling and shifting with γ, β
YouTube · 8:00 · 5 parts
Try it: switch source, tick a task, or flip the Plan / Read toggle
The plan lives in one app. The PDF in another. The video in a third, notes in a fourth. By the time you switch back, you've forgotten which task the note was for.
Read and Watch modes put the resource inside your learning plan. Three source types, one screen, no switching between apps.
How it works
From resource to reading in three steps
Attach it once. Every session starts where the last one ended.
-
STEP 01
Add a resource
Point a learning plan at a PDF book, an article or a video.
Google Drive PDFbookPublic article URLarticleYouTube, Vimeo or Drive linkvideo -
STEP 02
Open a chapter, section or part
Books split into chapters, articles into sections, videos into parts. Each one knows its pages, passage or timestamps.
Ch 07Regularizationpp. 61–72Ch 08Batch Normalizationpp. 73–82Ch 09Optimizerspp. 83–96 -
STEP 03
Flip the toggle
Use the mode toggle in the top right. The resource opens beside your checklist.
PlanReadPlanWatch
Books · PDF reader
Open the book right inside your plan
Preplani streams the PDF from Google Drive into the reader. Nothing to download and no waiting for a 400-page textbook to process. Pages load as you scroll, so a long book stays fast.
- Zoom, jump to a page, pick up where you left off
- Floating Note button pinned to the page you're on
- “Reading now” pill shows the next unchecked task
chapter-08-batch-normalization.pdf
p. 5 / 10
Deep Learning · Ch 085 / 10
Scale and shift with γ, β
figure 5.1 · from source PDF
augmentingcognition.com
38% through
Section 02
The forgetting curve
The curve is exponential, not linear. You lose the bulk of a fresh memory almost immediately, then the rate of loss slows.
This is the spacing effect: reviews spread across time produce far stronger memories than the same number crammed together.
Articles · clean reader
Turn any article into sections you can finish
Paste a public article URL and Preplani adds it to your learning plan. Ads, pop-ups and newsletter overlays are removed. Where the piece has real structure, its sections map to your tasks, and the checklist follows along as you scroll.
- Select text to Highlight or add a Note
- Highlights stay marked after you reload the page
- A thin bar at the top shows how far through you are
Videos · Watch mode
Watch with your checklist in view
Add a YouTube, Vimeo or Google Drive video and it plays inside your learning plan, split into parts, with your checklist next to the player. Every note saves the exact timestamp, so you can click it next week and land on that moment.
- Notes save the timestamp, like 2:34
- Prev / Next swaps tasks without reloading the player
- Parts on the timeline show what's done
▶ 2:34
γ and β are learned — the network can undo the normalization if that helps.
Note · Part 03 · click to jump back
Under the hood
The reader remembers everything
Close your laptop mid-read and open it on your phone. The checklist knows what's done, and the reader opens where you stopped.
Scroll positionPer chapter, section or part
Saved across sessions — come back and you land on the same paragraph.
PDF pageSynced to your account
Follows you across devices.
Video timestampOn every note
Click any note to jump back to that moment.
HighlightsPersistent
Shown in the text as you read and kept after reload.
Task completionUpdates instantly
Tick a task in the reader and the sidebar, progress bar and plan overview update.
Who it's for
For people who felt Preplani stopped too early
The founder catching up on twenty essays about pricing
BeforeSaved to a read-later app and lost track of which essay belonged to which project.
NowEach essay is a learning plan under a goal, split into sections. Every highlight is one click from its plan.
Free vs premium
The reader is free. Premium keeps articles for good.
| Free | Premium | |
|---|---|---|
| PDF book reader | ||
| Article reader | ||
| Watch mode for video | ||
| Highlights & inline notes | ||
| Progress sync across devices | ||
| Cloud archival for articles | — |
Premium saves a copy of each article the first time it loads. If the original page later disappears, goes behind a paywall or gets redesigned, your copy still opens.
See full pricing
FAQ
Read & Watch questions
Yes. Every Preplani account gets the PDF reader, the article reader and Watch mode, with highlights, inline notes and progress sync. Premium adds cloud archival for articles.
A PDF book in your Google Drive, any public article URL, or a YouTube, Vimeo or Google Drive video link.
Open a book chapter, article section or video part and use the mode toggle in the top right.
No. Preplani streams the book from Google Drive and loads pages as you scroll, so a 300-page book stays as fast as a 30-page one.
Straight to the task you were on, with the page, passage or video timestamp attached. Click a note later to jump back to that exact spot.
Yes. Scroll position is saved per chapter, section or part, and your PDF page is saved to your account, so it follows you across devices.
Premium accounts archive each article the first time it loads, so it stays readable. Free accounts fetch the article fresh each time.
Close the extra tabs. Your learning plan has everything.
Open any book chapter, article section or video part and use the mode toggle. No resource yet? Add one and try it.
- 1 · Add a resource
- 2 · Open a chapter, section or part
- 3 · Flip to Read or Watch
Read & Watch — free
Start learning