Folemi
Understand unfamiliar words as you read.
Carry what you learn into your next book.
Free Mac beta. AI features are available to invited accounts.
We make choices with limited time. Choosing one thing also means giving up another. A useful way to think about this is . If you choose an hour of reading, you give up other things you could have done in that hour: watching a film, exercising, or making progress at work.
Thinking about opportunity cost makes our choices more considered. Seeing what we give up helps clarify the value of what we choose.
FolemiThe most valuable alternative you give up when making a choice.
Consider the value of other activities you could have done during an hour spent reading.
Interactive illustration; all explanations are samples
Select a short phrase
Explore its meaning
You choose what belongs in your dictionary.
Works with short words and passages that Kindle allows you to copy. Copy limits are respected, and only the context needed is sent to AI.
Discover suggested connections, with reasons.
Turn the ones that make sense into notes for your next book.
Suggestions stay suggestions. You choose what to keep.
Connected by the things we give up when choosing.
The knowledge you choose. The tools you use.
A word found while reading
My noteTry this perspective on how I spend my time.
A term, an explanation, a source — and your own note.
# Opportunity cost ## My note Try this perspective on how I spend my time.
Export your saved notes as Markdown.
MAC · FREE BETA
The free Mac beta is available. AI features are for invited accounts. iPhone and iPad versions are in preparation.
Mac setup guide →Short words and passages that Kindle permits you to copy. Folemi respects each book’s copy limits and does not import entire books.
AI explanations and suggested connections may contain errors. Check them against the original source and edit them when needed.
The current Mac beta is free, with no payment card required. Downloads, requirements, and initial setup are on the Mac setup page.