Know before you watch.
TL;DW puts a small button on every YouTube thumbnail. Click it and you get the gist, the three things the video actually teaches, and the timestamp worth jumping to — before you spend eighteen minutes finding out it wasn't for you.
· 18 min video
A walkthrough of how compound interest behaves over long horizons, using three worked examples and a spreadsheet the presenter shares at the end.
You’ll learn
- Why the first decade contributes least to the final total
- How fees compound against you at the same rate
- A rule of thumb for doubling time without a calculator
Useful section
08:20 → 14:10
New information: Medium Watch useful partHow it works
Hover a thumbnail
A small TL;DW button fades in, wherever you are — home, search, subscriptions, or the recommended rail.
Click it
Nothing happens until you ask. Hovering costs you nothing, and no summary is generated until you click.
Decide in seconds
Read the card, jump to the part that matters, or close it and move on. You never opened the video.
Pricing
Free
$0 forever
- Five summaries every day
- Every feature of the card
- No account, no card, no sign-up
Unlimited
$4.99 / month
- As many summaries as you want
- A licence key that works on every browser and machine you use
- Cancel any time, from Stripe
There is no account to create. Your subscription travels as a licence key you paste into the extension’s options — so it follows you to another laptop without a password to remember or lose.
What it doesn’t do
It doesn’t watch you
Only the ID of a video you explicitly clicked is ever sent. No browsing history, no search queries, no YouTube account, no analytics, no ads. Read the policy.
It isn’t a chatbot
No prompt box, no conversation, no dashboard to manage. One button, one card, and it stays out of the way.
It doesn’t pretend to be certain
Summaries are AI-generated and can be wrong. The card tells you what the video covers so you can judge — it doesn’t score it out of ten.